38564028 has 18 divisors (see below), whose sum is σ = 97481384. Its totient is φ = 12854664.

The previous prime is 38564023. The next prime is 38564039. The reversal of 38564028 is 82046583.

38564028 is a `hidden beast` number, since 3 + 8 + 5 + 640 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1071223 = 38564028 / (3 + 8 + 5 + 6 + 4 + 0 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 38563983 and 38564001.

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 polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 535576 + ... + 535647.

Almost surely, 2^38564028 is an apocalyptic number.

It is an amenable number.

38564028 is an abundant number, since it is smaller than the sum of its proper divisors (58917356).

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

38564028 is a wasteful number, since it uses less digits than its factorization.

38564028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071233 (or 1071228 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 38564028 is about 6209.9942028958. The cubic root of 38564028 is about 337.8527538083.

The spelling of 38564028 in words is "thirty-eight million, five hundred sixty-four thousand, twenty-eight".