728588044 has 12 divisors (see below), whose sum is σ = 1304681224. Its totient is φ = 355821984.

The previous prime is 728588033. The next prime is 728588051. The reversal of 728588044 is 440885827.

It is a happy number.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 728587985 and 728588003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2117817 + ... + 2118160.

Almost surely, 2^728588044 is an apocalyptic number.

It is an amenable number.

728588044 is a deficient number, since it is larger than the sum of its proper divisors (576093180).

728588044 is a wasteful number, since it uses less digits than its factorization.

728588044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4236024 (or 4236022 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 46.

The square root of 728588044 is about 26992.3701071247. The cubic root of 728588044 is about 899.8304388384.

The spelling of 728588044 in words is "seven hundred twenty-eight million, five hundred eighty-eight thousand, forty-four".