38142564 has 24 divisors (see below), whose sum is σ = 90329568. Its totient is φ = 12524160.

The previous prime is 38142553. The next prime is 38142571. The reversal of 38142564 is 46524183.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22917 + ... + 24524.

It is an arithmetic number, because the mean of its divisors is an integer number (3763732).

Almost surely, 2^38142564 is an apocalyptic number.

It is an amenable number.

38142564 is an abundant number, since it is smaller than the sum of its proper divisors (52187004).

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

38142564 is a wasteful number, since it uses less digits than its factorization.

38142564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47515 (or 47513 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 38142564 is about 6175.9666449876. The cubic root of 38142564 is about 336.6174516607.

The spelling of 38142564 in words is "thirty-eight million, one hundred forty-two thousand, five hundred sixty-four".