38564434 has 16 divisors (see below), whose sum is σ = 61330176. Its totient is φ = 18154800.

The previous prime is 38564401. The next prime is 38564441. The reversal of 38564434 is 43446583.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 38564393 and 38564402.

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 7 ways as a sum of consecutive naturals, for example, 6112 + ... + 10699.

It is an arithmetic number, because the mean of its divisors is an integer number (3833136).

Almost surely, 2^38564434 is an apocalyptic number.

38564434 is a deficient number, since it is larger than the sum of its proper divisors (22765742).

38564434 is a wasteful number, since it uses less digits than its factorization.

38564434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16881.

The product of its digits is 138240, while the sum is 37.

The square root of 38564434 is about 6210.0268920513. The cubic root of 38564434 is about 337.8539394359.

The spelling of 38564434 in words is "thirty-eight million, five hundred sixty-four thousand, four hundred thirty-four".