22353664 has 36 divisors (see below), whose sum is σ = 46173960. Its totient is φ = 10787840.

The previous prime is 22353659. The next prime is 22353673. The reversal of 22353664 is 46635322.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5919 + ... + 8929.

It is an arithmetic number, because the mean of its divisors is an integer number (1282610).

Almost surely, 2^22353664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22353664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23086980).

22353664 is an abundant number, since it is smaller than the sum of its proper divisors (23820296).

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

22353664 is an equidigital number, since it uses as much as digits as its factorization.

22353664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056 (or 3042 counting only the distinct ones).

The product of its digits is 25920, while the sum is 31.

The square root of 22353664 is about 4727.9661589313. The cubic root of 22353664 is about 281.6974438940.

Adding to 22353664 its reverse (46635322), we get a palindrome (68988986).

The spelling of 22353664 in words is "twenty-two million, three hundred fifty-three thousand, six hundred sixty-four".