80459540 has 24 divisors (see below), whose sum is σ = 193103232. Its totient is φ = 27586080.

The previous prime is 80459501. The next prime is 80459557. The reversal of 80459540 is 4595408.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 80459540.

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, 287216 + ... + 287495.

It is an arithmetic number, because the mean of its divisors is an integer number (8045968).

Almost surely, 2^80459540 is an apocalyptic number.

It is an amenable number.

80459540 is an abundant number, since it is smaller than the sum of its proper divisors (112643692).

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

80459540 is a wasteful number, since it uses less digits than its factorization.

80459540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574727 (or 574725 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 80459540 is about 8969.9241914299. The cubic root of 80459540 is about 431.7104040463.

The spelling of 80459540 in words is "eighty million, four hundred fifty-nine thousand, five hundred forty".