80431518 has 8 divisors (see below), whose sum is σ = 160863048. Its totient is φ = 26810504.

The previous prime is 80431517. The next prime is 80431531. The reversal of 80431518 is 81513408.

It is a sphenic number, since it is the product of 3 distinct primes.

80431518 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80431517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6702621 + ... + 6702632.

It is an arithmetic number, because the mean of its divisors is an integer number (20107881).

Almost surely, 2^80431518 is an apocalyptic number.

80431518 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

80431518 is a wasteful number, since it uses less digits than its factorization.

80431518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13405258.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 80431518 is about 8968.3620578119. The cubic root of 80431518 is about 431.6602803293.

The spelling of 80431518 in words is "eighty million, four hundred thirty-one thousand, five hundred eighteen".