1420

Properties by base:

More about this number at Positiv Integers and Number Empire.

The number is not a prime.

Its 4 (3 unique) factors are:
2² = 4
5
71

Its 12 divisors are:
1
2
4
5
10
20
71
142
284
355
710
1420
Its aliquote sum is:
1604
makeing it a abundant number.

The number appears at position 882 of the decimal digits of π surrounded by
83875288658753320838142061717766914730359825 Source: The Pi-Search Page

Computations done with Math::BigInt 1.999811 and Math::Pari 2.030523 based on PARI/GP 2.11.3 (elapsed: 905.838ms; cpu: 84.5820000000002ms)