856324452 has 24 divisors (see below), whose sum is σ = 2103253600. Its totient is φ = 270418176.

The previous prime is 856324429. The next prime is 856324487. The reversal of 856324452 is 254423658.

It is a self number, because there is not a number n which added to its sum of digits gives 856324452.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1877677 + ... + 1878132.

Almost surely, 2^856324452 is an apocalyptic number.

It is an amenable number.

856324452 is an abundant number, since it is smaller than the sum of its proper divisors (1246929148).

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

856324452 is a wasteful number, since it uses less digits than its factorization.

856324452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755835 (or 3755833 counting only the distinct ones).

The product of its digits is 230400, while the sum is 39.

The square root of 856324452 is about 29263.0219218727. The cubic root of 856324452 is about 949.6118273781.

The spelling of 856324452 in words is "eight hundred fifty-six million, three hundred twenty-four thousand, four hundred fifty-two".