11685642 has 8 divisors (see below), whose sum is σ = 23371296. Its totient is φ = 3895212.

The previous prime is 11685617. The next prime is 11685643. The reversal of 11685642 is 24658611.

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

11685642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (11685643) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 973798 + ... + 973809.

It is an arithmetic number, because the mean of its divisors is an integer number (2921412).

Almost surely, 2^11685642 is an apocalyptic number.

11685642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11685642 is a wasteful number, since it uses less digits than its factorization.

11685642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947612.

The product of its digits is 11520, while the sum is 33.

The square root of 11685642 is about 3418.4268311608. The cubic root of 11685642 is about 226.9259657526.

It can be divided in two parts, 1168 and 5642, that multiplied together give a palindrome (6589856).

The spelling of 11685642 in words is "eleven million, six hundred eighty-five thousand, six hundred forty-two".