38812081 has 12 divisors (see below), whose sum is σ = 48756736. Its totient is φ = 30242520.

The previous prime is 38812073. The next prime is 38812097. The reversal of 38812081 is 18021883.

It is not a de Polignac number, because 38812081 - 2³ = 38812073 is a prime.

It is a super-2 number, since 2×38812081² = 3012755263101122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (38812021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22065 + ... + 23758.

Almost surely, 2^38812081 is an apocalyptic number.

It is an amenable number.

38812081 is a deficient number, since it is larger than the sum of its proper divisors (9944655).

38812081 is a wasteful number, since it uses less digits than its factorization.

38812081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45852 (or 45841 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 38812081 is about 6229.9342693162. The cubic root of 38812081 is about 338.5755892885.

The spelling of 38812081 in words is "thirty-eight million, eight hundred twelve thousand, eighty-one".