80795440 has 40 divisors (see below), whose sum is σ = 204928848. Its totient is φ = 29379840.

The previous prime is 80795423. The next prime is 80795447. The reversal of 80795440 is 4459708.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 80795440.

It is not an unprimeable number, because it can be changed into a prime (80795447) 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, 45027 + ... + 46786.

Almost surely, 2^80795440 is an apocalyptic number.

80795440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80795440 is an abundant number, since it is smaller than the sum of its proper divisors (124133408).

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

80795440 is a wasteful number, since it uses less digits than its factorization.

80795440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91837 (or 91831 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 80795440 is about 8988.6283714480. The cubic root of 80795440 is about 432.3103337124.

The spelling of 80795440 in words is "eighty million, seven hundred ninety-five thousand, four hundred forty".