38980931 has 4 divisors (see below), whose sum is σ = 42524664. Its totient is φ = 35437200.

The previous prime is 38980927. The next prime is 38980967. The reversal of 38980931 is 13908983.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38980931 - 2² = 38980927 is a prime.

It is a super-2 number, since 2×38980931² = 3039025963253522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38980631) 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, 1771850 + ... + 1771871.

It is an arithmetic number, because the mean of its divisors is an integer number (10631166).

Almost surely, 2^38980931 is an apocalyptic number.

38980931 is a deficient number, since it is larger than the sum of its proper divisors (3543733).

38980931 is a wasteful number, since it uses less digits than its factorization.

38980931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543732.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 38980931 is about 6243.4710698457. The cubic root of 38980931 is about 339.0658643412.

The spelling of 38980931 in words is "thirty-eight million, nine hundred eighty thousand, nine hundred thirty-one".