564400442 has 48 divisors (see below), whose sum is σ = 944268840. Its totient is φ = 251919360.

The previous prime is 564400433. The next prime is 564400481. The reversal of 564400442 is 244004465.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 545642881 + 18757561 = 23359^2 + 4331^2 .

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 6341534 + ... + 6341622.

Almost surely, 2^564400442 is an apocalyptic number.

564400442 is a deficient number, since it is larger than the sum of its proper divisors (379868398).

564400442 is a wasteful number, since it uses less digits than its factorization.

564400442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 564400442 is about 23757.1135031173. The cubic root of 564400442 is about 826.4104148154.

The spelling of 564400442 in words is "five hundred sixty-four million, four hundred thousand, four hundred forty-two".