11815942 has 8 divisors (see below), whose sum is σ = 17802000. Its totient is φ = 5881944.

The previous prime is 11815939. The next prime is 11815943. The reversal of 11815942 is 24951811.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11815943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12442 + ... + 13357.

It is an arithmetic number, because the mean of its divisors is an integer number (2225250).

Almost surely, 2^11815942 is an apocalyptic number.

11815942 is a deficient number, since it is larger than the sum of its proper divisors (5986058).

11815942 is a wasteful number, since it uses less digits than its factorization.

11815942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26030.

The product of its digits is 2880, while the sum is 31.

The square root of 11815942 is about 3437.4324720640. The cubic root of 11815942 is about 227.7662912488.

The spelling of 11815942 in words is "eleven million, eight hundred fifteen thousand, nine hundred forty-two".