857182272 has 28 divisors (see below), whose sum is σ = 2267961936. Its totient is φ = 285727360.

The previous prime is 857182247. The next prime is 857182289. The reversal of 857182272 is 272281758.

It is a super-2 number, since 2×857182272² = 1469522894862163968, which contains 22 as substring.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 2232054 + ... + 2232437.

Almost surely, 2^857182272 is an apocalyptic number.

It is an amenable number.

857182272 is an abundant number, since it is smaller than the sum of its proper divisors (1410779664).

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

857182272 is a wasteful number, since it uses less digits than its factorization.

857182272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4464506 (or 4464496 counting only the distinct ones).

The product of its digits is 125440, while the sum is 42.

The square root of 857182272 is about 29277.6753175521. The cubic root of 857182272 is about 949.9288116555.

It can be divided in two parts, 85718 and 2272, that added together give a triangular number (87990 = T₄₁₉).

The spelling of 857182272 in words is "eight hundred fifty-seven million, one hundred eighty-two thousand, two hundred seventy-two".