2857405290 has 32 divisors (see below), whose sum is σ = 7043120640. Its totient is φ = 741380544.

The previous prime is 2857405261. The next prime is 2857405303. The reversal of 2857405290 is 925047582.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1286010 + ... + 1288229.

It is an arithmetic number, because the mean of its divisors is an integer number (220097520).

Almost surely, 2^2857405290 is an apocalyptic number.

2857405290 is an abundant number, since it is smaller than the sum of its proper divisors (4185715350).

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

2857405290 is a wasteful number, since it uses less digits than its factorization.

2857405290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574286.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 2857405290 is about 53454.7031607136. The cubic root of 2857405290 is about 1419.0268558919.

The spelling of 2857405290 in words is "two billion, eight hundred fifty-seven million, four hundred five thousand, two hundred ninety".