38128672 has 24 divisors (see below), whose sum is σ = 75297600. Its totient is φ = 19005504.

The previous prime is 38128669. The next prime is 38128679. The reversal of 38128672 is 27682183.

It is not an unprimeable number, because it can be changed into a prime (38128679) 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, 9829 + ... + 13147.

It is an arithmetic number, because the mean of its divisors is an integer number (3137400).

Almost surely, 2^38128672 is an apocalyptic number.

38128672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38128672 is a deficient number, since it is larger than the sum of its proper divisors (37168928).

38128672 is a wasteful number, since it uses less digits than its factorization.

38128672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688 (or 3680 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 38128672 is about 6174.8418603232. The cubic root of 38128672 is about 336.5765799330.

The spelling of 38128672 in words is "thirty-eight million, one hundred twenty-eight thousand, six hundred seventy-two".