728472344 has 16 divisors (see below), whose sum is σ = 1412985600. Its totient is φ = 351676192.

The previous prime is 728472323. The next prime is 728472361. The reversal of 728472344 is 443274827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1569752 + ... + 1570215.

It is an arithmetic number, because the mean of its divisors is an integer number (88311600).

Almost surely, 2^728472344 is an apocalyptic number.

It is an amenable number.

728472344 is a deficient number, since it is larger than the sum of its proper divisors (684513256).

728472344 is a wasteful number, since it uses less digits than its factorization.

728472344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140002 (or 3139998 counting only the distinct ones).

The product of its digits is 301056, while the sum is 41.

The square root of 728472344 is about 26990.2268237968. The cubic root of 728472344 is about 899.7828052023.

The spelling of 728472344 in words is "seven hundred twenty-eight million, four hundred seventy-two thousand, three hundred forty-four".