856299458 has 16 divisors (see below), whose sum is σ = 1468920960. Its totient is φ = 366740736.

The previous prime is 856299383. The next prime is 856299487. The reversal of 856299458 is 854992658.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2210 + ... + 41442.

It is an arithmetic number, because the mean of its divisors is an integer number (91807560).

Almost surely, 2^856299458 is an apocalyptic number.

856299458 is a deficient number, since it is larger than the sum of its proper divisors (612621502).

856299458 is a wasteful number, since it uses less digits than its factorization.

856299458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40801.

The product of its digits is 6220800, while the sum is 56.

The square root of 856299458 is about 29262.5948610167. The cubic root of 856299458 is about 949.6025883454.

The spelling of 856299458 in words is "eight hundred fifty-six million, two hundred ninety-nine thousand, four hundred fifty-eight".