38864881 has 8 divisors (see below), whose sum is σ = 42774624. Its totient is φ = 35017920.

The previous prime is 38864809. The next prime is 38864909. The reversal of 38864881 is 18846883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38864881 - 2⁷ = 38864753 is a prime.

It is a super-2 number, since 2×38864881² = 3020957950288322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38865881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14391 + ... + 16876.

It is an arithmetic number, because the mean of its divisors is an integer number (5346828).

Almost surely, 2^38864881 is an apocalyptic number.

It is an amenable number.

38864881 is a deficient number, since it is larger than the sum of its proper divisors (3909743).

38864881 is a wasteful number, since it uses less digits than its factorization.

38864881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31391.

The product of its digits is 294912, while the sum is 46.

The square root of 38864881 is about 6234.1704339872. The cubic root of 38864881 is about 338.7290525938.

The spelling of 38864881 in words is "thirty-eight million, eight hundred sixty-four thousand, eight hundred eighty-one".