11888140 has 24 divisors (see below), whose sum is σ = 27235152. Its totient is φ = 4322880.

The previous prime is 11888111. The next prime is 11888143. The reversal of 11888140 is 4188811.

It is not an unprimeable number, because it can be changed into a prime (11888143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26799 + ... + 27238.

It is an arithmetic number, because the mean of its divisors is an integer number (1134798).

Almost surely, 2^11888140 is an apocalyptic number.

11888140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11888140 is an abundant number, since it is smaller than the sum of its proper divisors (15347012).

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

11888140 is a wasteful number, since it uses less digits than its factorization.

11888140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54057 (or 54055 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 31.

The square root of 11888140 is about 3447.9182124871. The cubic root of 11888140 is about 228.2292502812.

The spelling of 11888140 in words is "eleven million, eight hundred eighty-eight thousand, one hundred forty".