80790880 has 24 divisors (see below), whose sum is σ = 190868832. Its totient is φ = 32316288.

The previous prime is 80790877. The next prime is 80790887. The reversal of 80790880 is 8809708.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80790887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252312 + ... + 252631.

It is an arithmetic number, because the mean of its divisors is an integer number (7952868).

Almost surely, 2^80790880 is an apocalyptic number.

80790880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80790880 is an abundant number, since it is smaller than the sum of its proper divisors (110077952).

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

80790880 is a wasteful number, since it uses less digits than its factorization.

80790880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504958 (or 504950 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 80790880 is about 8988.3747140404. The cubic root of 80790880 is about 432.3022005298.

The spelling of 80790880 in words is "eighty million, seven hundred ninety thousand, eight hundred eighty".