38228764 has 12 divisors (see below), whose sum is σ = 76457584. Its totient is φ = 16383744.

The previous prime is 38228747. The next prime is 38228777. The reversal of 38228764 is 46782283.

38228764 is an admirable number.

It is a super-2 number, since 2×38228764² = 2922876793935392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682629 + ... + 682684.

Almost surely, 2^38228764 is an apocalyptic number.

It is an amenable number.

38228764 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

38228764 is a wasteful number, since it uses less digits than its factorization.

38228764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365324 (or 1365322 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 38228764 is about 6182.9413712245. The cubic root of 38228764 is about 336.8708395666.

The spelling of 38228764 in words is "thirty-eight million, two hundred twenty-eight thousand, seven hundred sixty-four".