80808138 has 32 divisors (see below), whose sum is σ = 180273600. Its totient is φ = 26831088.

The previous prime is 80808109. The next prime is 80808139. The reversal of 80808138 is 83180808.

It is not an unprimeable number, because it can be changed into a prime (80808139) 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, 11745 + ... + 17307.

It is an arithmetic number, because the mean of its divisors is an integer number (5633550).

Almost surely, 2^80808138 is an apocalyptic number.

80808138 is an abundant number, since it is smaller than the sum of its proper divisors (99465462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80808138 is a wasteful number, since it uses less digits than its factorization.

80808138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5843 (or 5837 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 80808138 is about 8989.3346806090. The cubic root of 80808138 is about 432.3329801599.

The spelling of 80808138 in words is "eighty million, eight hundred eight thousand, one hundred thirty-eight".