564455730 has 16 divisors (see below), whose sum is σ = 1354693824. Its totient is φ = 150521520.

The previous prime is 564455729. The next prime is 564455741. The reversal of 564455730 is 37554465.

It is a super-2 number, since 2×564455730² = 637220542259665800, which contains 22 as substring.

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, 9407566 + ... + 9407625.

It is an arithmetic number, because the mean of its divisors is an integer number (84668364).

Almost surely, 2^564455730 is an apocalyptic number.

564455730 is an abundant number, since it is smaller than the sum of its proper divisors (790238094).

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

564455730 is a wasteful number, since it uses less digits than its factorization.

564455730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18815201.

The product of its (nonzero) digits is 252000, while the sum is 39.

The square root of 564455730 is about 23758.2770839975. The cubic root of 564455730 is about 826.4373986634.

The spelling of 564455730 in words is "five hundred sixty-four million, four hundred fifty-five thousand, seven hundred thirty".