856490360 has 64 divisors (see below), whose sum is σ = 2212963200. Its totient is φ = 295056000.

The previous prime is 856490359. The next prime is 856490387. The reversal of 856490360 is 63094658.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42866 + ... + 59585.

It is an arithmetic number, because the mean of its divisors is an integer number (34577550).

Almost surely, 2^856490360 is an apocalyptic number.

It is an amenable number.

856490360 is an abundant number, since it is smaller than the sum of its proper divisors (1356472840).

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

856490360 is a wasteful number, since it uses less digits than its factorization.

856490360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102492 (or 102488 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 856490360 is about 29265.8565567454. The cubic root of 856490360 is about 949.6731507177.

The spelling of 856490360 in words is "eight hundred fifty-six million, four hundred ninety thousand, three hundred sixty".