80802918 has 48 divisors (see below), whose sum is σ = 203382816. Its totient is φ = 22705920.

The previous prime is 80802901. The next prime is 80802941. The reversal of 80802918 is 81920808.

It is a super-2 number, since 2×80802918² = 13058223114629448, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2430 + ... + 12942.

It is an arithmetic number, because the mean of its divisors is an integer number (4237142).

Almost surely, 2^80802918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80802918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101691408).

80802918 is an abundant number, since it is smaller than the sum of its proper divisors (122579898).

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

80802918 is a wasteful number, since it uses less digits than its factorization.

80802918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10589 (or 10586 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 80802918 is about 8989.0443318520. The cubic root of 80802918 is about 432.3236707561.

The spelling of 80802918 in words is "eighty million, eight hundred two thousand, nine hundred eighteen".