22065888 has 48 divisors (see below), whose sum is σ = 62382096. Its totient is φ = 6789120.

The previous prime is 22065863. The next prime is 22065919. The reversal of 22065888 is 88856022.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-5 number, since 5×22065888⁵ (a number of 38 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7593 + ... + 10088.

It is an arithmetic number, because the mean of its divisors is an integer number (1299627).

Almost surely, 2^22065888 is an apocalyptic number.

It is an amenable number.

22065888 is an abundant number, since it is smaller than the sum of its proper divisors (40316208).

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

22065888 is a wasteful number, since it uses less digits than its factorization.

22065888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17707 (or 17699 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 22065888 is about 4697.4341932591. The cubic root of 22065888 is about 280.4833827110.

The spelling of 22065888 in words is "twenty-two million, sixty-five thousand, eight hundred eighty-eight".