11730728 has 16 divisors (see below), whose sum is σ = 22032000. Its totient is φ = 5855536.

The previous prime is 11730721. The next prime is 11730749. The reversal of 11730728 is 82703711.

It is a self number, because there is not a number n which added to its sum of digits gives 11730728.

It is not an unprimeable number, because it can be changed into a prime (11730721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7433 + ... + 8871.

It is an arithmetic number, because the mean of its divisors is an integer number (1377000).

Almost surely, 2^11730728 is an apocalyptic number.

It is an amenable number.

11730728 is a deficient number, since it is larger than the sum of its proper divisors (10301272).

11730728 is a wasteful number, since it uses less digits than its factorization.

11730728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464 (or 2460 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 11730728 is about 3425.0150364633. The cubic root of 11730728 is about 227.2174360916.

The spelling of 11730728 in words is "eleven million, seven hundred thirty thousand, seven hundred twenty-eight".