80437632 has 128 divisors (see below), whose sum is σ = 236476800. Its totient is φ = 24023040.

The previous prime is 80437627. The next prime is 80437657. The reversal of 80437632 is 23673408.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 80437593 and 80437602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 578619 + ... + 578757.

It is an arithmetic number, because the mean of its divisors is an integer number (1847475).

Almost surely, 2^80437632 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 80437632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118238400).

80437632 is an abundant number, since it is smaller than the sum of its proper divisors (156039168).

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

80437632 is a wasteful number, since it uses less digits than its factorization.

80437632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 80437632 is about 8968.7029162527. The cubic root of 80437632 is about 431.6712176010.

It can be divided in two parts, 804376 and 32, that added together give a palindrome (804408).

The spelling of 80437632 in words is "eighty million, four hundred thirty-seven thousand, six hundred thirty-two".