80943018 has 32 divisors (see below), whose sum is σ = 184597056. Its totient is φ = 23440128.

The previous prime is 80943007. The next prime is 80943043. The reversal of 80943018 is 81034908.

It is a self number, because there is not a number n which added to its sum of digits gives 80943018.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29196 + ... + 31847.

It is an arithmetic number, because the mean of its divisors is an integer number (5768658).

Almost surely, 2^80943018 is an apocalyptic number.

80943018 is an abundant number, since it is smaller than the sum of its proper divisors (103654038).

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

80943018 is a wasteful number, since it uses less digits than its factorization.

80943018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61078.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 80943018 is about 8996.8337763904. The cubic root of 80943018 is about 432.5733877048.

The spelling of 80943018 in words is "eighty million, nine hundred forty-three thousand, eighteen".