80439120 has 60 divisors (see below), whose sum is σ = 270143796. Its totient is φ = 21450240.

The previous prime is 80439113. The next prime is 80439131. The reversal of 80439120 is 2193408.

It can be written as a sum of positive squares in 2 ways, for example, as 15023376 + 65415744 = 3876^2 + 8088^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55141 + ... + 56580.

Almost surely, 2^80439120 is an apocalyptic number.

80439120 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80439120 is an abundant number, since it is smaller than the sum of its proper divisors (189704676).

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

80439120 is a wasteful number, since it uses less digits than its factorization.

80439120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111740 (or 111731 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 80439120 is about 8968.7858710084. The cubic root of 80439120 is about 431.6738793850.

The spelling of 80439120 in words is "eighty million, four hundred thirty-nine thousand, one hundred twenty".