80440772 has 12 divisors (see below), whose sum is σ = 141226176. Its totient is φ = 40090440.

The previous prime is 80440757. The next prime is 80440823. The reversal of 80440772 is 27704408.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31088 + ... + 33575.

It is an arithmetic number, because the mean of its divisors is an integer number (11768848).

Almost surely, 2^80440772 is an apocalyptic number.

It is an amenable number.

80440772 is a deficient number, since it is larger than the sum of its proper divisors (60785404).

80440772 is a wasteful number, since it uses less digits than its factorization.

80440772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64978 (or 64976 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 80440772 is about 8968.8779677282. The cubic root of 80440772 is about 431.6768344993.

The spelling of 80440772 in words is "eighty million, four hundred forty thousand, seven hundred seventy-two".