22088664 has 48 divisors (see below), whose sum is σ = 64428000. Its totient is φ = 6796224.

The previous prime is 22088663. The next prime is 22088669. The reversal of 22088664 is 46688022.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22088663) 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 11 ways as a sum of consecutive naturals, for example, 10864 + ... + 12735.

It is an arithmetic number, because the mean of its divisors is an integer number (1342250).

Almost surely, 2^22088664 is an apocalyptic number.

22088664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22088664 is an abundant number, since it is smaller than the sum of its proper divisors (42339336).

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

22088664 is a wasteful number, since it uses less digits than its factorization.

22088664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23624 (or 23617 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 22088664 is about 4699.8578701914. The cubic root of 22088664 is about 280.5798527741.

The spelling of 22088664 in words is "twenty-two million, eighty-eight thousand, six hundred sixty-four".