11857422 has 16 divisors (see below), whose sum is σ = 24266880. Its totient is φ = 3860472.

The previous prime is 11857409. The next prime is 11857423. The reversal of 11857422 is 22475811.

It is a self number, because there is not a number n which added to its sum of digits gives 11857422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11857423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22722 + ... + 23237.

It is an arithmetic number, because the mean of its divisors is an integer number (1516680).

Almost surely, 2^11857422 is an apocalyptic number.

11857422 is an abundant number, since it is smaller than the sum of its proper divisors (12409458).

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

11857422 is a wasteful number, since it uses less digits than its factorization.

11857422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46007.

The product of its digits is 4480, while the sum is 30.

The square root of 11857422 is about 3443.4607591782. The cubic root of 11857422 is about 228.0325053687.

The spelling of 11857422 in words is "eleven million, eight hundred fifty-seven thousand, four hundred twenty-two".