438488564 has 12 divisors (see below), whose sum is σ = 769976004. Its totient is φ = 218495424.

The previous prime is 438488549. The next prime is 438488573. The reversal of 438488564 is 465884834.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 171819664 + 266668900 = 13108^2 + 16330^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185897 + ... + 188240.

It is an arithmetic number, because the mean of its divisors is an integer number (64164667).

Almost surely, 2^438488564 is an apocalyptic number.

It is an amenable number.

438488564 is a deficient number, since it is larger than the sum of its proper divisors (331487440).

438488564 is a wasteful number, since it uses less digits than its factorization.

438488564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374434 (or 374432 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 50.

The square root of 438488564 is about 20940.1185287954. The cubic root of 438488564 is about 759.7185961873.

The spelling of 438488564 in words is "four hundred thirty-eight million, four hundred eighty-eight thousand, five hundred sixty-four".