80431372 has 24 divisors (see below), whose sum is σ = 161858816. Its totient is φ = 34257168.

The previous prime is 80431343. The next prime is 80431397. The reversal of 80431372 is 27313408.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 80431372.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4248 + ... + 13375.

Almost surely, 2^80431372 is an apocalyptic number.

It is an amenable number.

80431372 is an abundant number, since it is smaller than the sum of its proper divisors (81427444).

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

80431372 is a wasteful number, since it uses less digits than its factorization.

80431372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17797 (or 17795 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 80431372 is about 8968.3539180833. The cubic root of 80431372 is about 431.6600191447.

The spelling of 80431372 in words is "eighty million, four hundred thirty-one thousand, three hundred seventy-two".