11938128 has 40 divisors (see below), whose sum is σ = 31271808. Its totient is φ = 3923712.

The previous prime is 11938109. The next prime is 11938151. The reversal of 11938128 is 82183911.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1801 + ... + 5207.

Almost surely, 2^11938128 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 11938128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15635904).

11938128 is an abundant number, since it is smaller than the sum of its proper divisors (19333680).

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

11938128 is a wasteful number, since it uses less digits than its factorization.

11938128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3491 (or 3485 counting only the distinct ones).

The product of its digits is 3456, while the sum is 33.

The square root of 11938128 is about 3455.1596200465. The cubic root of 11938128 is about 228.5486938697.

The spelling of 11938128 in words is "eleven million, nine hundred thirty-eight thousand, one hundred twenty-eight".