564240439 has 24 divisors (see below), whose sum is σ = 691819488. Its totient is φ = 457934400.

The previous prime is 564240427. The next prime is 564240451. The reversal of 564240439 is 934042465.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (564240427) and next prime (564240451).

It is not a de Polignac number, because 564240439 - 2⁵ = 564240407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 564240398 and 564240407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564240409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111349 + ... + 116305.

It is an arithmetic number, because the mean of its divisors is an integer number (28825812).

Almost surely, 2^564240439 is an apocalyptic number.

564240439 is a deficient number, since it is larger than the sum of its proper divisors (127579049).

564240439 is a wasteful number, since it uses less digits than its factorization.

564240439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5095 (or 5088 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 564240439 is about 23753.7457888224. The cubic root of 564240439 is about 826.3323138591.

The spelling of 564240439 in words is "five hundred sixty-four million, two hundred forty thousand, four hundred thirty-nine".