728004144 has 40 divisors (see below), whose sum is σ = 2149346560. Its totient is φ = 208001088.

The previous prime is 728004113. The next prime is 728004149. The reversal of 728004144 is 441400827.

It is not an unprimeable number, because it can be changed into a prime (728004149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1083004 + ... + 1083675.

It is an arithmetic number, because the mean of its divisors is an integer number (53733664).

Almost surely, 2^728004144 is an apocalyptic number.

It is an amenable number.

728004144 is an abundant number, since it is smaller than the sum of its proper divisors (1421342416).

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

728004144 is a wasteful number, since it uses less digits than its factorization.

728004144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166697 (or 2166691 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 728004144 is about 26981.5519197840. The cubic root of 728004144 is about 899.5899959630.

The spelling of 728004144 in words is "seven hundred twenty-eight million, four thousand, one hundred forty-four".