80642304 has 90 divisors (see below), whose sum is σ = 240522590. Its totient is φ = 26873856.

The previous prime is 80642293. The next prime is 80642323. The reversal of 80642304 is 40324608.

It can be written as a sum of positive squares in only one way, i.e., 74649600 + 5992704 = 8640^2 + 2448^2 .

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 9 ways as a sum of consecutive naturals, for example, 18792 + ... + 22680.

Almost surely, 2^80642304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80642304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120261295).

80642304 is an abundant number, since it is smaller than the sum of its proper divisors (159880286).

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

80642304 is an equidigital number, since it uses as much as digits as its factorization.

80642304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917 (or 3894 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 80642304 is about 8980.1060127373. The cubic root of 80642304 is about 432.0370338622.

The spelling of 80642304 in words is "eighty million, six hundred forty-two thousand, three hundred four".