11903728 has 20 divisors (see below), whose sum is σ = 24277960. Its totient is φ = 5638464.

The previous prime is 11903707. The next prime is 11903729. The reversal of 11903728 is 82730911.

11903728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11903728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11903729) 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, 19275 + ... + 19882.

It is an arithmetic number, because the mean of its divisors is an integer number (1213898).

Almost surely, 2^11903728 is an apocalyptic number.

It is an amenable number.

11903728 is an abundant number, since it is smaller than the sum of its proper divisors (12374232).

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

11903728 is a wasteful number, since it uses less digits than its factorization.

11903728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39184 (or 39178 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 11903728 is about 3450.1779664243. The cubic root of 11903728 is about 228.3289598442.

The spelling of 11903728 in words is "eleven million, nine hundred three thousand, seven hundred twenty-eight".