11838140 has 24 divisors (see below), whose sum is σ = 26169360. Its totient is φ = 4485888.

The previous prime is 11838131. The next prime is 11838179. The reversal of 11838140 is 4183811.

11838140 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 7 ways as a sum of consecutive naturals, for example, 15197 + ... + 15956.

It is an arithmetic number, because the mean of its divisors is an integer number (1090390).

Almost surely, 2^11838140 is an apocalyptic number.

11838140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11838140 is an abundant number, since it is smaller than the sum of its proper divisors (14331220).

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

11838140 is a wasteful number, since it uses less digits than its factorization.

11838140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31181 (or 31179 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 11838140 is about 3440.6598204414. The cubic root of 11838140 is about 227.9088329469.

The spelling of 11838140 in words is "eleven million, eight hundred thirty-eight thousand, one hundred forty".