11550728 has 16 divisors (see below), whose sum is σ = 24751680. Its totient is φ = 4950288.

The previous prime is 11550719. The next prime is 11550739. The reversal of 11550728 is 82705511.

It is a self number, because there is not a number n which added to its sum of digits gives 11550728.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103076 + ... + 103187.

It is an arithmetic number, because the mean of its divisors is an integer number (1546980).

Almost surely, 2^11550728 is an apocalyptic number.

It is an amenable number.

11550728 is an abundant number, since it is smaller than the sum of its proper divisors (13200952).

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

11550728 is a wasteful number, since it uses less digits than its factorization.

11550728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206276 (or 206272 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 11550728 is about 3398.6361970649. The cubic root of 11550728 is about 226.0492752869.

The spelling of 11550728 in words is "eleven million, five hundred fifty thousand, seven hundred twenty-eight".