80407242 has 64 divisors (see below), whose sum is σ = 187038720. Its totient is φ = 25894080.

The previous prime is 80407231. The next prime is 80407267. The reversal of 80407242 is 24270408.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135298 + ... + 135890.

It is an arithmetic number, because the mean of its divisors is an integer number (2922480).

Almost surely, 2^80407242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80407242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93519360).

80407242 is an abundant number, since it is smaller than the sum of its proper divisors (106631478).

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

80407242 is an equidigital number, since it uses as much as digits as its factorization.

80407242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 80407242 is about 8967.0085312773. The cubic root of 80407242 is about 431.6168477726.

The spelling of 80407242 in words is "eighty million, four hundred seven thousand, two hundred forty-two".