80812044 has 18 divisors (see below), whose sum is σ = 204274980. Its totient is φ = 26937336.

The previous prime is 80812013. The next prime is 80812051. The reversal of 80812044 is 44021808.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 80811999 and 80812017.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1122354 + ... + 1122425.

It is an arithmetic number, because the mean of its divisors is an integer number (11348610).

Almost surely, 2^80812044 is an apocalyptic number.

It is an amenable number.

80812044 is an abundant number, since it is smaller than the sum of its proper divisors (123462936).

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

80812044 is a wasteful number, since it uses less digits than its factorization.

80812044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244789 (or 2244784 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 80812044 is about 8989.5519354415. The cubic root of 80812044 is about 432.3399458998.

The spelling of 80812044 in words is "eighty million, eight hundred twelve thousand, forty-four".