564402385 has 8 divisors (see below), whose sum is σ = 681339456. Its totient is φ = 448817520.

The previous prime is 564402373. The next prime is 564402389. The reversal of 564402385 is 583204465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 564402385 - 2¹¹ = 564400337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564402389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337131 + ... + 338800.

It is an arithmetic number, because the mean of its divisors is an integer number (85167432).

Almost surely, 2^564402385 is an apocalyptic number.

It is an amenable number.

564402385 is a deficient number, since it is larger than the sum of its proper divisors (116937071).

564402385 is a wasteful number, since it uses less digits than its factorization.

564402385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676103.

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 564402385 is about 23757.1543960972. The cubic root of 564402385 is about 826.4113631454.

The spelling of 564402385 in words is "five hundred sixty-four million, four hundred two thousand, three hundred eighty-five".