440800728 has 16 divisors (see below), whose sum is σ = 1102001880. Its totient is φ = 146933568.

The previous prime is 440800709. The next prime is 440800729. The reversal of 440800728 is 827008044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440800729) 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, 9183325 + ... + 9183372.

Almost surely, 2^440800728 is an apocalyptic number.

It is an amenable number.

440800728 is an abundant number, since it is smaller than the sum of its proper divisors (661201152).

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

440800728 is a wasteful number, since it uses less digits than its factorization.

440800728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18366706 (or 18366702 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 440800728 is about 20995.2548924751. The cubic root of 440800728 is about 761.0515959659.

The spelling of 440800728 in words is "four hundred forty million, eight hundred thousand, seven hundred twenty-eight".