438082664 has 32 divisors (see below), whose sum is σ = 845034120. Its totient is φ = 212760576.

The previous prime is 438082657. The next prime is 438082691. The reversal of 438082664 is 466280834.

It can be written as a sum of positive squares in 4 ways, for example, as 359405764 + 78676900 = 18958^2 + 8870^2 .

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, 281312 + ... + 282864.

Almost surely, 2^438082664 is an apocalyptic number.

It is an amenable number.

438082664 is a deficient number, since it is larger than the sum of its proper divisors (406951456).

438082664 is a wasteful number, since it uses less digits than its factorization.

438082664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549 (or 2545 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The square root of 438082664 is about 20930.4243626354. The cubic root of 438082664 is about 759.4841051021.

The spelling of 438082664 in words is "four hundred thirty-eight million, eighty-two thousand, six hundred sixty-four".