80443992 has 32 divisors (see below), whose sum is σ = 201412800. Its totient is φ = 26774304.

The previous prime is 80443981. The next prime is 80443997. The reversal of 80443992 is 29934408.

It is a self number, because there is not a number n which added to its sum of digits gives 80443992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80443997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16759 + ... + 21017.

It is an arithmetic number, because the mean of its divisors is an integer number (6294150).

Almost surely, 2^80443992 is an apocalyptic number.

It is an amenable number.

80443992 is an abundant number, since it is smaller than the sum of its proper divisors (120968808).

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

80443992 is a wasteful number, since it uses less digits than its factorization.

80443992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055 (or 5051 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 80443992 is about 8969.0574755656. The cubic root of 80443992 is about 431.6825943514.

The spelling of 80443992 in words is "eighty million, four hundred forty-three thousand, nine hundred ninety-two".