80518932 has 36 divisors (see below), whose sum is σ = 219191700. Its totient is φ = 24774912.

The previous prime is 80518931. The next prime is 80518967. The reversal of 80518932 is 23981508.

It can be written as a sum of positive squares in 2 ways, for example, as 40525956 + 39992976 = 6366^2 + 6324^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80518931) by changing a digit.

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, 85557 + ... + 86492.

Almost surely, 2^80518932 is an apocalyptic number.

It is an amenable number.

80518932 is an abundant number, since it is smaller than the sum of its proper divisors (138672768).

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

80518932 is a wasteful number, since it uses less digits than its factorization.

80518932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172072 (or 172067 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 80518932 is about 8973.2341995515. The cubic root of 80518932 is about 431.8166016791.

The spelling of 80518932 in words is "eighty million, five hundred eighteen thousand, nine hundred thirty-two".