859040492 has 12 divisors (see below), whose sum is σ = 1504382880. Its totient is φ = 429216816.

The previous prime is 859040459. The next prime is 859040509. The reversal of 859040492 is 294040958.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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, 69428 + ... + 80859.

It is an arithmetic number, because the mean of its divisors is an integer number (125365240).

Almost surely, 2^859040492 is an apocalyptic number.

It is an amenable number.

859040492 is a deficient number, since it is larger than the sum of its proper divisors (645342388).

859040492 is a wasteful number, since it uses less digits than its factorization.

859040492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151720 (or 151718 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 859040492 is about 29309.3925559709. The cubic root of 859040492 is about 950.6147422824.

The spelling of 859040492 in words is "eight hundred fifty-nine million, forty thousand, four hundred ninety-two".