38399564 has 24 divisors (see below), whose sum is σ = 78435840. Its totient is φ = 16106256.

The previous prime is 38399563. The next prime is 38399587. The reversal of 38399564 is 46599383.

38399564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (38399563) 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 7 ways as a sum of consecutive naturals, for example, 13274 + ... + 15905.

It is an arithmetic number, because the mean of its divisors is an integer number (3268160).

Almost surely, 2^38399564 is an apocalyptic number.

It is an amenable number.

38399564 is an abundant number, since it is smaller than the sum of its proper divisors (40036276).

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

38399564 is a wasteful number, since it uses less digits than its factorization.

38399564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29237 (or 29235 counting only the distinct ones).

The product of its digits is 699840, while the sum is 47.

The square root of 38399564 is about 6196.7381742333. The cubic root of 38399564 is about 337.3717892525.

The spelling of 38399564 in words is "thirty-eight million, three hundred ninety-nine thousand, five hundred sixty-four".