38879728 has 10 divisors (see below), whose sum is σ = 75329504. Its totient is φ = 19439856.

The previous prime is 38879699. The next prime is 38879741. The reversal of 38879728 is 82797883.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1214976 + ... + 1215007.

Almost surely, 2^38879728 is an apocalyptic number.

It is an amenable number.

38879728 is a deficient number, since it is larger than the sum of its proper divisors (36449776).

38879728 is a wasteful number, since it uses less digits than its factorization.

38879728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429991 (or 2429985 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 52.

The square root of 38879728 is about 6235.3610961996. The cubic root of 38879728 is about 338.7721803898.

The spelling of 38879728 in words is "thirty-eight million, eight hundred seventy-nine thousand, seven hundred twenty-eight".