728012044 has 12 divisors (see below), whose sum is σ = 1279735744. Its totient is φ = 362373264.

The previous prime is 728012041. The next prime is 728012053. The reversal of 728012044 is 440210827.

It is not an unprimeable number, because it can be changed into a prime (728012041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407187 + ... + 408970.

Almost surely, 2^728012044 is an apocalyptic number.

It is an amenable number.

728012044 is a deficient number, since it is larger than the sum of its proper divisors (551723700).

728012044 is a wasteful number, since it uses less digits than its factorization.

728012044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816384 (or 816382 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 728012044 is about 26981.6983157102. The cubic root of 728012044 is about 899.5932499441.

The spelling of 728012044 in words is "seven hundred twenty-eight million, twelve thousand, forty-four".