11728912 has 80 divisors (see below), whose sum is σ = 26998272. Its totient is φ = 4884480.

The previous prime is 11728907. The next prime is 11728921. The reversal of 11728912 is 21982711.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109563 + ... + 109669.

Almost surely, 2^11728912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11728912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13499136).

11728912 is an abundant number, since it is smaller than the sum of its proper divisors (15269360).

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

11728912 is a wasteful number, since it uses less digits than its factorization.

11728912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 170 counting only the distinct ones).

The product of its digits is 2016, while the sum is 31.

The square root of 11728912 is about 3424.7499178772. The cubic root of 11728912 is about 227.2057105290.

The spelling of 11728912 in words is "eleven million, seven hundred twenty-eight thousand, nine hundred twelve".