11915442 has 48 divisors (see below), whose sum is σ = 32190912. Its totient is φ = 3094560.

The previous prime is 11915417. The next prime is 11915447. The reversal of 11915442 is 24451911.

11915442 is a `hidden beast` number, since 119 + 1 + 544 + 2 = 666.

11915442 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11915447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2913 + ... + 5684.

It is an arithmetic number, because the mean of its divisors is an integer number (670644).

Almost surely, 2^11915442 is an apocalyptic number.

11915442 is an abundant number, since it is smaller than the sum of its proper divisors (20275470).

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

11915442 is a wasteful number, since it uses less digits than its factorization.

11915442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8623 (or 8620 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 11915442 is about 3451.8751425855. The cubic root of 11915442 is about 228.4038318669.

The spelling of 11915442 in words is "eleven million, nine hundred fifteen thousand, four hundred forty-two".