38883881 has 4 divisors (see below), whose sum is σ = 38915472. Its totient is φ = 38852292.

The previous prime is 38883877. The next prime is 38883953. The reversal of 38883881 is 18838883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38883881 - 2² = 38883877 is a prime.

It is a super-2 number, since 2×38883881² = 3023912403244322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38883281) 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, 13871 + ... + 16436.

It is an arithmetic number, because the mean of its divisors is an integer number (9728868).

Almost surely, 2^38883881 is an apocalyptic number.

It is an amenable number.

38883881 is a deficient number, since it is larger than the sum of its proper divisors (31591).

38883881 is a wasteful number, since it uses less digits than its factorization.

38883881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31590.

The product of its digits is 294912, while the sum is 47.

The square root of 38883881 is about 6235.6941073148. The cubic root of 38883881 is about 338.7842421235.

The spelling of 38883881 in words is "thirty-eight million, eight hundred eighty-three thousand, eight hundred eighty-one".