80437056 has 112 divisors (see below), whose sum is σ = 246132096. Its totient is φ = 22708224.

The previous prime is 80437037. The next prime is 80437057. The reversal of 80437056 is 65073408.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80437057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130060 + ... + 130676.

It is an arithmetic number, because the mean of its divisors is an integer number (2197608).

Almost surely, 2^80437056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80437056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123066048).

80437056 is an abundant number, since it is smaller than the sum of its proper divisors (165695040).

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

80437056 is a wasteful number, since it uses less digits than its factorization.

80437056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736 (or 726 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 80437056 is about 8968.6708045284. The cubic root of 80437056 is about 431.6701872242.

The spelling of 80437056 in words is "eighty million, four hundred thirty-seven thousand, fifty-six".