80440788 has 24 divisors (see below), whose sum is σ = 192061408. Its totient is φ = 26189856.

The previous prime is 80440757. The next prime is 80440823. The reversal of 80440788 is 88704408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77431 + ... + 78462.

Almost surely, 2^80440788 is an apocalyptic number.

It is an amenable number.

80440788 is an abundant number, since it is smaller than the sum of its proper divisors (111620620).

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

80440788 is a wasteful number, since it uses less digits than its factorization.

80440788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155943 (or 155941 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 80440788 is about 8968.8788597015. The cubic root of 80440788 is about 431.6768631200.

The spelling of 80440788 in words is "eighty million, four hundred forty thousand, seven hundred eighty-eight".