22690144 has 24 divisors (see below), whose sum is σ = 46614960. Its totient is φ = 10851456.

The previous prime is 22690141. The next prime is 22690163. The reversal of 22690144 is 44109622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22690141) 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, 14679 + ... + 16150.

It is an arithmetic number, because the mean of its divisors is an integer number (1942290).

Almost surely, 2^22690144 is an apocalyptic number.

It is an amenable number.

22690144 is an abundant number, since it is smaller than the sum of its proper divisors (23924816).

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

22690144 is a wasteful number, since it uses less digits than its factorization.

22690144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30862 (or 30854 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 22690144 is about 4763.4172607488. The cubic root of 22690144 is about 283.1038338407.

Adding to 22690144 its reverse (44109622), we get a palindrome (66799766).

The spelling of 22690144 in words is "twenty-two million, six hundred ninety thousand, one hundred forty-four".