38223928 has 16 divisors (see below), whose sum is σ = 71744760. Its totient is φ = 19092000.

The previous prime is 38223893. The next prime is 38223929. The reversal of 38223928 is 82932283.

It is a happy number.

It is a super-2 number, since 2×38223928² = 2922137343498368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38223929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8478 + ... + 12178.

Almost surely, 2^38223928 is an apocalyptic number.

It is an amenable number.

38223928 is a deficient number, since it is larger than the sum of its proper divisors (33520832).

38223928 is a wasteful number, since it uses less digits than its factorization.

38223928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4998 (or 4994 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 38223928 is about 6182.5502828525. The cubic root of 38223928 is about 336.8566340670.

It can be divided in two parts, 3822 and 3928, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 38223928 in words is "thirty-eight million, two hundred twenty-three thousand, nine hundred twenty-eight".