11988942 has 16 divisors (see below), whose sum is σ = 27403392. Its totient is φ = 3425400.

The previous prime is 11988941. The next prime is 11988953. The reversal of 11988942 is 24988911.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 285451 = 11988942 / (1 + 1 + 9 + 8 + 8 + 9 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 11988894 and 11988903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11988941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142684 + ... + 142767.

It is an arithmetic number, because the mean of its divisors is an integer number (1712712).

Almost surely, 2^11988942 is an apocalyptic number.

11988942 is an abundant number, since it is smaller than the sum of its proper divisors (15414450).

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

11988942 is a wasteful number, since it uses less digits than its factorization.

11988942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285463.

The product of its digits is 41472, while the sum is 42.

The square root of 11988942 is about 3462.5051624510. The cubic root of 11988942 is about 228.8725032869.

The spelling of 11988942 in words is "eleven million, nine hundred eighty-eight thousand, nine hundred forty-two".