11939428 has 12 divisors (see below), whose sum is σ = 21159040. Its totient is φ = 5893992.

The previous prime is 11939407. The next prime is 11939437. The reversal of 11939428 is 82493911.

11939428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18576 + ... + 19207.

Almost surely, 2^11939428 is an apocalyptic number.

It is an amenable number.

11939428 is a deficient number, since it is larger than the sum of its proper divisors (9219612).

11939428 is a wasteful number, since it uses less digits than its factorization.

11939428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37866 (or 37864 counting only the distinct ones).

The product of its digits is 15552, while the sum is 37.

The square root of 11939428 is about 3455.3477393744. The cubic root of 11939428 is about 228.5569894897.

The spelling of 11939428 in words is "eleven million, nine hundred thirty-nine thousand, four hundred twenty-eight".