438086664 has 32 divisors (see below), whose sum is σ = 1216908000. Its totient is φ = 146028816.

The previous prime is 438086657. The next prime is 438086713. The reversal of 438086664 is 466680834.

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 7 ways as a sum of consecutive naturals, for example, 1013874 + ... + 1014305.

It is an arithmetic number, because the mean of its divisors is an integer number (38028375).

Almost surely, 2^438086664 is an apocalyptic number.

It is an amenable number.

438086664 is an abundant number, since it is smaller than the sum of its proper divisors (778821336).

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

438086664 is a wasteful number, since it uses less digits than its factorization.

438086664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028194 (or 2028184 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The square root of 438086664 is about 20930.5199170971. The cubic root of 438086664 is about 759.4864166348.

The spelling of 438086664 in words is "four hundred thirty-eight million, eighty-six thousand, six hundred sixty-four".