880306728 has 64 divisors (see below), whose sum is σ = 2519856000. Its totient is φ = 251046912.

The previous prime is 880306709. The next prime is 880306787. The reversal of 880306728 is 827603088.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 880306728.

It is an unprimeable number.

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, 90988 + ... + 100196.

It is an arithmetic number, because the mean of its divisors is an integer number (39372750).

Almost surely, 2^880306728 is an apocalyptic number.

It is an amenable number.

880306728 is an abundant number, since it is smaller than the sum of its proper divisors (1639549272).

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

880306728 is a wasteful number, since it uses less digits than its factorization.

880306728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9794 (or 9790 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 880306728 is about 29669.9633973485. The cubic root of 880306728 is about 958.3952965573.

The spelling of 880306728 in words is "eight hundred eighty million, three hundred six thousand, seven hundred twenty-eight".