80437844 has 12 divisors (see below), whose sum is σ = 142348500. Its totient is φ = 39766848.

The previous prime is 80437843. The next prime is 80437871. The reversal of 80437844 is 44873408.

It can be written as a sum of positive squares in 2 ways, for example, as 55056400 + 25381444 = 7420^2 + 5038^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80437798 and 80437807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80437843) 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, 112619 + ... + 113330.

It is an arithmetic number, because the mean of its divisors is an integer number (11862375).

Almost surely, 2^80437844 is an apocalyptic number.

It is an amenable number.

80437844 is a deficient number, since it is larger than the sum of its proper divisors (61910656).

80437844 is a wasteful number, since it uses less digits than its factorization.

80437844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226042 (or 226040 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 38.

The square root of 80437844 is about 8968.7147351223. The cubic root of 80437844 is about 431.6715968357.

The spelling of 80437844 in words is "eighty million, four hundred thirty-seven thousand, eight hundred forty-four".