857056432 has 10 divisors (see below), whose sum is σ = 1660546868. Its totient is φ = 428528208.

The previous prime is 857056397. The next prime is 857056439. The reversal of 857056432 is 234650758.

It is not an unprimeable number, because it can be changed into a prime (857056439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26782998 + ... + 26783029.

Almost surely, 2^857056432 is an apocalyptic number.

It is an amenable number.

857056432 is a deficient number, since it is larger than the sum of its proper divisors (803490436).

857056432 is a wasteful number, since it uses less digits than its factorization.

857056432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53566035 (or 53566029 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 857056432 is about 29275.5261609420. The cubic root of 857056432 is about 949.8823241130.

The spelling of 857056432 in words is "eight hundred fifty-seven million, fifty-six thousand, four hundred thirty-two".