38220564 has 24 divisors (see below), whose sum is σ = 89430880. Its totient is φ = 12704544.

The previous prime is 38220557. The next prime is 38220599. The reversal of 38220564 is 46502283.

It is a congruent number.

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, 207 + ... + 8745.

Almost surely, 2^38220564 is an apocalyptic number.

It is an amenable number.

38220564 is an abundant number, since it is smaller than the sum of its proper divisors (51210316).

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

38220564 is a wasteful number, since it uses less digits than its factorization.

38220564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8919 (or 8917 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 38220564 is about 6182.2782208503. The cubic root of 38220564 is about 336.8467517845.

The spelling of 38220564 in words is "thirty-eight million, two hundred twenty thousand, five hundred sixty-four".