38664388 has 48 divisors (see below), whose sum is σ = 79478784. Its totient is φ = 16117920.

The previous prime is 38664361. The next prime is 38664389. The reversal of 38664388 is 88346683.

38664388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (38664389) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 295083 + ... + 295213.

It is an arithmetic number, because the mean of its divisors is an integer number (1655808).

Almost surely, 2^38664388 is an apocalyptic number.

It is an amenable number.

38664388 is an abundant number, since it is smaller than the sum of its proper divisors (40814396).

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

38664388 is a wasteful number, since it uses less digits than its factorization.

38664388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 350 counting only the distinct ones).

The product of its digits is 663552, while the sum is 46.

The square root of 38664388 is about 6218.0694753275. The cubic root of 38664388 is about 338.1455787818.

The spelling of 38664388 in words is "thirty-eight million, six hundred sixty-four thousand, three hundred eighty-eight".