453444656 has 20 divisors (see below), whose sum is σ = 1004056272. Its totient is φ = 194333376.

The previous prime is 453444653. The next prime is 453444703. The reversal of 453444656 is 656444354.

It is a super-2 number, since 2×453444656² = 411224112109916672, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (453444653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2024195 + ... + 2024418.

Almost surely, 2^453444656 is an apocalyptic number.

It is an amenable number.

453444656 is an abundant number, since it is smaller than the sum of its proper divisors (550611616).

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

453444656 is a wasteful number, since it uses less digits than its factorization.

453444656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4048628 (or 4048622 counting only the distinct ones).

The product of its digits is 691200, while the sum is 41.

The square root of 453444656 is about 21294.2399723493. The cubic root of 453444656 is about 768.2597772097.

The spelling of 453444656 in words is "four hundred fifty-three million, four hundred forty-four thousand, six hundred fifty-six".