28800736 has 24 divisors (see below), whose sum is σ = 58532544. Its totient is φ = 13935360.

The previous prime is 28800721. The next prime is 28800749. The reversal of 28800736 is 63700882.

It is a happy number.

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, 13525 + ... + 15508.

It is an arithmetic number, because the mean of its divisors is an integer number (2438856).

Almost surely, 2^28800736 is an apocalyptic number.

It is an amenable number.

28800736 is an abundant number, since it is smaller than the sum of its proper divisors (29731808).

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

28800736 is a wasteful number, since it uses less digits than its factorization.

28800736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29074 (or 29066 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 28800736 is about 5366.6317183127. The cubic root of 28800736 is about 306.5263840636.

The spelling of 28800736 in words is "twenty-eight million, eight hundred thousand, seven hundred thirty-six".