11838742 has 16 divisors (see below), whose sum is σ = 18372240. Its totient is φ = 5717088.

The previous prime is 11838737. The next prime is 11838751. The reversal of 11838742 is 24783811.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11838698 and 11838707.

It is a congruent number.

It is an unprimeable number.

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, 11109 + ... + 12127.

It is an arithmetic number, because the mean of its divisors is an integer number (1148265).

Almost surely, 2^11838742 is an apocalyptic number.

11838742 is a deficient number, since it is larger than the sum of its proper divisors (6533498).

11838742 is a wasteful number, since it uses less digits than its factorization.

11838742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215.

The product of its digits is 10752, while the sum is 34.

The square root of 11838742 is about 3440.7473025493. The cubic root of 11838742 is about 227.9126961324.

The spelling of 11838742 in words is "eleven million, eight hundred thirty-eight thousand, seven hundred forty-two".