22113642 has 16 divisors (see below), whose sum is σ = 45423072. Its totient is φ = 7171920.

The previous prime is 22113577. The next prime is 22113643. The reversal of 22113642 is 24631122.

It is not an unprimeable number, because it can be changed into a prime (22113643) 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, 49584 + ... + 50027.

It is an arithmetic number, because the mean of its divisors is an integer number (2838942).

Almost surely, 2^22113642 is an apocalyptic number.

22113642 is an abundant number, since it is smaller than the sum of its proper divisors (23309430).

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

22113642 is a wasteful number, since it uses less digits than its factorization.

22113642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99653.

The product of its digits is 576, while the sum is 21.

The square root of 22113642 is about 4702.5144337897. The cubic root of 22113642 is about 280.6855734209.

Adding to 22113642 its reverse (24631122), we get a palindrome (46744764).

The spelling of 22113642 in words is "twenty-two million, one hundred thirteen thousand, six hundred forty-two".