38772428 has 6 divisors (see below), whose sum is σ = 67851756. Its totient is φ = 19386212.

The previous prime is 38772401. The next prime is 38772439. The reversal of 38772428 is 82427783.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4846550 + ... + 4846557.

It is an arithmetic number, because the mean of its divisors is an integer number (11308626).

Almost surely, 2^38772428 is an apocalyptic number.

It is an amenable number.

38772428 is a deficient number, since it is larger than the sum of its proper divisors (29079328).

38772428 is a wasteful number, since it uses less digits than its factorization.

38772428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9693111 (or 9693109 counting only the distinct ones).

The product of its digits is 150528, while the sum is 41.

The square root of 38772428 is about 6226.7509987151. The cubic root of 38772428 is about 338.4602462284.

The spelling of 38772428 in words is "thirty-eight million, seven hundred seventy-two thousand, four hundred twenty-eight".