38564020 has 24 divisors (see below), whose sum is σ = 88347168. Its totient is φ = 14023200.

The previous prime is 38564003. The next prime is 38564023. The reversal of 38564020 is 2046583.

38564020 = 618² + 619² + ... + 705².

It is a self number, because there is not a number n which added to its sum of digits gives 38564020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38564023) by changing a digit.

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, 87426 + ... + 87865.

It is an arithmetic number, because the mean of its divisors is an integer number (3681132).

Almost surely, 2^38564020 is an apocalyptic number.

It is an amenable number.

38564020 is an abundant number, since it is smaller than the sum of its proper divisors (49783148).

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

38564020 is a wasteful number, since it uses less digits than its factorization.

38564020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175311 (or 175309 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 38564020 is about 6209.9935587728. The cubic root of 38564020 is about 337.8527304461.

The spelling of 38564020 in words is "thirty-eight million, five hundred sixty-four thousand, twenty".