80320572 has 60 divisors (see below), whose sum is σ = 211445080. Its totient is φ = 26586144.

The previous prime is 80320571. The next prime is 80320589. The reversal of 80320572 is 27502308.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80320571) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 50079 + ... + 51657.

Almost surely, 2^80320572 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 80320572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105722540).

80320572 is an abundant number, since it is smaller than the sum of its proper divisors (131124508).

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

80320572 is a wasteful number, since it uses less digits than its factorization.

80320572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752 (or 1741 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 80320572 is about 8962.1745129182. The cubic root of 80320572 is about 431.4617138156.

The spelling of 80320572 in words is "eighty million, three hundred twenty thousand, five hundred seventy-two".