564451320 has 64 divisors (see below), whose sum is σ = 1695582720. Its totient is φ = 150322304.

The previous prime is 564451313. The next prime is 564451343. The reversal of 564451320 is 23154465.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 103789 + ... + 109091.

It is an arithmetic number, because the mean of its divisors is an integer number (26493480).

Almost surely, 2^564451320 is an apocalyptic number.

It is an amenable number.

564451320 is an abundant number, since it is smaller than the sum of its proper divisors (1131131400).

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

564451320 is a wasteful number, since it uses less digits than its factorization.

564451320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6204 (or 6200 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 564451320 is about 23758.1842740560. The cubic root of 564451320 is about 826.4352463845.

The spelling of 564451320 in words is "five hundred sixty-four million, four hundred fifty-one thousand, three hundred twenty".