728310236 has 12 divisors (see below), whose sum is σ = 1274739312. Its totient is φ = 364099008.

The previous prime is 728310217. The next prime is 728310239. The reversal of 728310236 is 632013827.

It is a happy number.

728310236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728310239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31841 + ... + 49703.

It is an arithmetic number, because the mean of its divisors is an integer number (106228276).

Almost surely, 2^728310236 is an apocalyptic number.

It is an amenable number.

728310236 is a deficient number, since it is larger than the sum of its proper divisors (546429076).

728310236 is a wasteful number, since it uses less digits than its factorization.

728310236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28060 (or 28058 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 728310236 is about 26987.2235696820. The cubic root of 728310236 is about 899.7160569296.

The spelling of 728310236 in words is "seven hundred twenty-eight million, three hundred ten thousand, two hundred thirty-six".