80844880 has 40 divisors (see below), whose sum is σ = 190782432. Its totient is φ = 31853184.

The previous prime is 80844871. The next prime is 80844913. The reversal of 80844880 is 8844808.

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

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

It is a congruent number.

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, 2182 + ... + 12901.

Almost surely, 2^80844880 is an apocalyptic number.

80844880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80844880 is an abundant number, since it is smaller than the sum of its proper divisors (109937552).

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

80844880 is a wasteful number, since it uses less digits than its factorization.

80844880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15163 (or 15157 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 40.

The square root of 80844880 is about 8991.3780923727. The cubic root of 80844880 is about 432.3984948958.

The spelling of 80844880 in words is "eighty million, eight hundred forty-four thousand, eight hundred eighty".