38915872 has 24 divisors (see below), whose sum is σ = 77366016. Its totient is φ = 19267392.

The previous prime is 38915867. The next prime is 38915879. The reversal of 38915872 is 27851983.

It is not an unprimeable number, because it can be changed into a prime (38915879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2608 + ... + 9199.

It is an arithmetic number, because the mean of its divisors is an integer number (3223584).

Almost surely, 2^38915872 is an apocalyptic number.

38915872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38915872 is a deficient number, since it is larger than the sum of its proper divisors (38450144).

38915872 is a wasteful number, since it uses less digits than its factorization.

38915872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11920 (or 11912 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The square root of 38915872 is about 6238.2587314089. The cubic root of 38915872 is about 338.8771261626.

It can be divided in two parts, 389 and 15872, that added together give a palindrome (16261).

The spelling of 38915872 in words is "thirty-eight million, nine hundred fifteen thousand, eight hundred seventy-two".