80809418 has 16 divisors (see below), whose sum is σ = 123986376. Its totient is φ = 39486720.

The previous prime is 80809397. The next prime is 80809447. The reversal of 80809418 is 81490808.

It can be written as a sum of positive squares in 4 ways, for example, as 79085449 + 1723969 = 8893^2 + 1313^2 .

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, 28430 + ... + 31142.

Almost surely, 2^80809418 is an apocalyptic number.

80809418 is a deficient number, since it is larger than the sum of its proper divisors (43176958).

80809418 is a wasteful number, since it uses less digits than its factorization.

80809418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 80809418 is about 8989.4058758074. The cubic root of 80809418 is about 432.3352628643.

The spelling of 80809418 in words is "eighty million, eight hundred nine thousand, four hundred eighteen".