38723331 has 16 divisors (see below), whose sum is σ = 54895104. Its totient is φ = 24196224.

The previous prime is 38723303. The next prime is 38723339. The reversal of 38723331 is 13332783.

It is not a de Polignac number, because 38723331 - 2⁷ = 38723203 is a prime.

It is a super-2 number, since 2×38723331² = 2998992727471122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38723339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11970 + ... + 14856.

It is an arithmetic number, because the mean of its divisors is an integer number (3430944).

Almost surely, 2^38723331 is an apocalyptic number.

38723331 is a deficient number, since it is larger than the sum of its proper divisors (16171773).

38723331 is a wasteful number, since it uses less digits than its factorization.

38723331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170.

The product of its digits is 9072, while the sum is 30.

The square root of 38723331 is about 6222.8073246727. The cubic root of 38723331 is about 338.3173233437.

The spelling of 38723331 in words is "thirty-eight million, seven hundred twenty-three thousand, three hundred thirty-one".