80439408 has 60 divisors (see below), whose sum is σ = 257281648. Its totient is φ = 22982400.

The previous prime is 80439383. The next prime is 80439431. The reversal of 80439408 is 80493408.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38893 + ... + 40908.

Almost surely, 2^80439408 is an apocalyptic number.

It is an amenable number.

80439408 is an abundant number, since it is smaller than the sum of its proper divisors (176842240).

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

80439408 is a wasteful number, since it uses less digits than its factorization.

80439408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79822 (or 79813 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 80439408 is about 8968.8019266789. The cubic root of 80439408 is about 431.6743945652.

The spelling of 80439408 in words is "eighty million, four hundred thirty-nine thousand, four hundred eight".