80579240 has 32 divisors (see below), whose sum is σ = 207204480. Its totient is φ = 27627072.

The previous prime is 80579221. The next prime is 80579243. The reversal of 80579240 is 4297508.

It is a happy number.

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 80579240.

It is not an unprimeable number, because it can be changed into a prime (80579243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143612 + ... + 144171.

It is an arithmetic number, because the mean of its divisors is an integer number (6475140).

Almost surely, 2^80579240 is an apocalyptic number.

It is an amenable number.

80579240 is an abundant number, since it is smaller than the sum of its proper divisors (126625240).

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

80579240 is a wasteful number, since it uses less digits than its factorization.

80579240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287801 (or 287797 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 80579240 is about 8976.5940088655. The cubic root of 80579240 is about 431.9243837701.

The spelling of 80579240 in words is "eighty million, five hundred seventy-nine thousand, two hundred forty".