38631872 has 14 divisors (see below), whose sum is σ = 76660248. Its totient is φ = 19315904.

The previous prime is 38631847. The next prime is 38631907. The reversal of 38631872 is 27813683.

It is a happy number.

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, 301748 + ... + 301875.

It is an arithmetic number, because the mean of its divisors is an integer number (5475732).

Almost surely, 2^38631872 is an apocalyptic number.

38631872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38631872 is a deficient number, since it is larger than the sum of its proper divisors (38028376).

38631872 is an equidigital number, since it uses as much as digits as its factorization.

38631872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603635 (or 603625 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 38631872 is about 6215.4542874998. The cubic root of 38631872 is about 338.0507609068.

The spelling of 38631872 in words is "thirty-eight million, six hundred thirty-one thousand, eight hundred seventy-two".