728837232 has 40 divisors (see below), whose sum is σ = 1883796096. Its totient is φ = 242821056.

The previous prime is 728837227. The next prime is 728837297. The reversal of 728837232 is 232738827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182683 + ... + 186629.

Almost surely, 2^728837232 is an apocalyptic number.

It is an amenable number.

728837232 is an abundant number, since it is smaller than the sum of its proper divisors (1154958864).

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

728837232 is a wasteful number, since it uses less digits than its factorization.

728837232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7805 (or 7799 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 728837232 is about 26996.9856095083. The cubic root of 728837232 is about 899.9330122981.

The spelling of 728837232 in words is "seven hundred twenty-eight million, eight hundred thirty-seven thousand, two hundred thirty-two".