38464644 has 48 divisors (see below), whose sum is σ = 92207808. Its totient is φ = 12475008.

The previous prime is 38464639. The next prime is 38464663. The reversal of 38464644 is 44646483.

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 15 ways as a sum of consecutive naturals, for example, 125139 + ... + 125445.

It is an arithmetic number, because the mean of its divisors is an integer number (1920996).

Almost surely, 2^38464644 is an apocalyptic number.

It is an amenable number.

38464644 is an abundant number, since it is smaller than the sum of its proper divisors (53743164).

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

38464644 is a wasteful number, since it uses less digits than its factorization.

38464644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 562 counting only the distinct ones).

The product of its digits is 221184, while the sum is 39.

The square root of 38464644 is about 6201.9871009218. The cubic root of 38464644 is about 337.5622754767.

The spelling of 38464644 in words is "thirty-eight million, four hundred sixty-four thousand, six hundred forty-four".