80808372 has 72 divisors (see below), whose sum is σ = 209858376. Its totient is φ = 26210304.

The previous prime is 80808367. The next prime is 80808401. The reversal of 80808372 is 27380808.

It can be written as a sum of positive squares in 4 ways, for example, as 1313316 + 79495056 = 1146^2 + 8916^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 254758 + ... + 255074.

Almost surely, 2^80808372 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 80808372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104929188).

80808372 is an abundant number, since it is smaller than the sum of its proper divisors (129050004).

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

80808372 is a wasteful number, since it uses less digits than its factorization.

80808372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 80808372 is about 8989.3476960233. The cubic root of 80808372 is about 432.3333974686. Note that the first 4 decimals are identical.

The spelling of 80808372 in words is "eighty million, eight hundred eight thousand, three hundred seventy-two".