2731170920 has 16 divisors (see below), whose sum is σ = 6145134660. Its totient is φ = 1092468352.

The previous prime is 2731170919. The next prime is 2731170943. The reversal of 2731170920 is 290711372.

It can be written as a sum of positive squares in 2 ways, for example, as 2210692324 + 520478596 = 47018^2 + 22814^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34139597 + ... + 34139676.

Almost surely, 2^2731170920 is an apocalyptic number.

2731170920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2731170920 is an abundant number, since it is smaller than the sum of its proper divisors (3413963740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2731170920 is a wasteful number, since it uses less digits than its factorization.

2731170920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68279284 (or 68279280 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 2731170920 is about 52260.6058135571. The cubic root of 2731170920 is about 1397.8147745837.

The spelling of 2731170920 in words is "two billion, seven hundred thirty-one million, one hundred seventy thousand, nine hundred twenty".