728232370 has 32 divisors (see below), whose sum is σ = 1327269888. Its totient is φ = 287655168.

The previous prime is 728232359. The next prime is 728232397. The reversal of 728232370 is 73232827.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408922 + ... + 410698.

It is an arithmetic number, because the mean of its divisors is an integer number (41477184).

Almost surely, 2^728232370 is an apocalyptic number.

728232370 is a deficient number, since it is larger than the sum of its proper divisors (599037518).

728232370 is a wasteful number, since it uses less digits than its factorization.

728232370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 728232370 is about 26985.7808854960. The cubic root of 728232370 is about 899.6839919369.

The spelling of 728232370 in words is "seven hundred twenty-eight million, two hundred thirty-two thousand, three hundred seventy".