564221424 has 40 divisors (see below), whose sum is σ = 1569694672. Its totient is φ = 173606400.

The previous prime is 564221389. The next prime is 564221431. The reversal of 564221424 is 424122465.

It is a junction number, because it is equal to n+sod(n) for n = 564221391 and 564221400.

It is a congruent number.

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, 451477 + ... + 452724.

Almost surely, 2^564221424 is an apocalyptic number.

It is an amenable number.

564221424 is an abundant number, since it is smaller than the sum of its proper divisors (1005473248).

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

564221424 is a wasteful number, since it uses less digits than its factorization.

564221424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904225 (or 904219 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

The square root of 564221424 is about 23753.3455327876. The cubic root of 564221424 is about 826.3230312410.

Adding to 564221424 its reverse (424122465), we get a palindrome (988343889).

The spelling of 564221424 in words is "five hundred sixty-four million, two hundred twenty-one thousand, four hundred twenty-four".