728700336 has 120 divisors (see below), whose sum is σ = 2510012960. Its totient is φ = 192181248.

The previous prime is 728700307. The next prime is 728700367. The reversal of 728700336 is 633007827.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 728700336.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14701 + ... + 40908.

Almost surely, 2^728700336 is an apocalyptic number.

It is an amenable number.

728700336 is an abundant number, since it is smaller than the sum of its proper divisors (1781312624).

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

728700336 is a wasteful number, since it uses less digits than its factorization.

728700336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55643 (or 55634 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 728700336 is about 26994.4500962698. The cubic root of 728700336 is about 899.8766645804.

The spelling of 728700336 in words is "seven hundred twenty-eight million, seven hundred thousand, three hundred thirty-six".