857457532 has 24 divisors (see below), whose sum is σ = 1530455472. Its totient is φ = 420201600.

The previous prime is 857457521. The next prime is 857457563. The reversal of 857457532 is 235754758.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312607 + ... + 315337.

It is an arithmetic number, because the mean of its divisors is an integer number (63768978).

Almost surely, 2^857457532 is an apocalyptic number.

It is an amenable number.

857457532 is a deficient number, since it is larger than the sum of its proper divisors (672997940).

857457532 is a wasteful number, since it uses less digits than its factorization.

857457532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4269 (or 4267 counting only the distinct ones).

The product of its digits is 1176000, while the sum is 46.

The square root of 857457532 is about 29282.3757915918. The cubic root of 857457532 is about 950.0304817551.

The spelling of 857457532 in words is "eight hundred fifty-seven million, four hundred fifty-seven thousand, five hundred thirty-two".