80318736 has 40 divisors (see below), whose sum is σ = 230545760. Its totient is φ = 26772768.

The previous prime is 80318731. The next prime is 80318759. The reversal of 80318736 is 63781308.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 80318736.

It is not an unprimeable number, because it can be changed into a prime (80318731) 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, 92530 + ... + 93393.

It is an arithmetic number, because the mean of its divisors is an integer number (5763644).

Almost surely, 2^80318736 is an apocalyptic number.

It is an amenable number.

80318736 is an abundant number, since it is smaller than the sum of its proper divisors (150227024).

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

80318736 is a wasteful number, since it uses less digits than its factorization.

80318736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185940 (or 185928 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 80318736 is about 8962.0720818346. The cubic root of 80318736 is about 431.4584262820.

The spelling of 80318736 in words is "eighty million, three hundred eighteen thousand, seven hundred thirty-six".