11438988 has 48 divisors (see below), whose sum is σ = 30656640. Its totient is φ = 3283200.

The previous prime is 11438971. The next prime is 11439047. The reversal of 11438988 is 88983411.

11438988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 228 + ... + 4788.

It is an arithmetic number, because the mean of its divisors is an integer number (638680).

Almost surely, 2^11438988 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 11438988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15328320).

11438988 is an abundant number, since it is smaller than the sum of its proper divisors (19217652).

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

11438988 is a wasteful number, since it uses less digits than its factorization.

11438988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4598 (or 4596 counting only the distinct ones).

The product of its digits is 55296, while the sum is 42.

The square root of 11438988 is about 3382.1572997127. The cubic root of 11438988 is about 225.3179898831.

The spelling of 11438988 in words is "eleven million, four hundred thirty-eight thousand, nine hundred eighty-eight".