857256032 has 12 divisors (see below), whose sum is σ = 1687722876. Its totient is φ = 428628000.

The previous prime is 857256031. The next prime is 857256047. The reversal of 857256032 is 230652758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857256031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13394594 + ... + 13394657.

It is an arithmetic number, because the mean of its divisors is an integer number (140643573).

Almost surely, 2^857256032 is an apocalyptic number.

It is an amenable number.

857256032 is a deficient number, since it is larger than the sum of its proper divisors (830466844).

857256032 is a wasteful number, since it uses less digits than its factorization.

857256032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26789261 (or 26789253 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 857256032 is about 29278.9349533073. The cubic root of 857256032 is about 949.9560578013.

The spelling of 857256032 in words is "eight hundred fifty-seven million, two hundred fifty-six thousand, thirty-two".