11831842 has 8 divisors (see below), whose sum is σ = 19361232. Its totient is φ = 5378100.

The previous prime is 11831839. The next prime is 11831849. The reversal of 11831842 is 24813811.

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

It is a super-2 number, since 2×11831842² = 279984970225928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11831842.

It is not an unprimeable number, because it can be changed into a prime (11831849) 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, 268884 + ... + 268927.

It is an arithmetic number, because the mean of its divisors is an integer number (2420154).

Almost surely, 2^11831842 is an apocalyptic number.

11831842 is a deficient number, since it is larger than the sum of its proper divisors (7529390).

11831842 is a wasteful number, since it uses less digits than its factorization.

11831842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537824.

The product of its digits is 1536, while the sum is 28.

The square root of 11831842 is about 3439.7444672533. The cubic root of 11831842 is about 227.8684092416.

It can be divided in two parts, 1183 and 1842, that added together give a square (3025 = 55²).

The spelling of 11831842 in words is "eleven million, eight hundred thirty-one thousand, eight hundred forty-two".