22595664 has 120 divisors (see below), whose sum is σ = 73224480. Its totient is φ = 5951232.

The previous prime is 22595653. The next prime is 22595687. The reversal of 22595664 is 46659522.

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 23 ways as a sum of consecutive naturals, for example, 30207 + ... + 30945.

It is an arithmetic number, because the mean of its divisors is an integer number (610204).

Almost surely, 2^22595664 is an apocalyptic number.

22595664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22595664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36612240).

22595664 is an abundant number, since it is smaller than the sum of its proper divisors (50628816).

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

22595664 is a wasteful number, since it uses less digits than its factorization.

22595664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777 (or 764 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The square root of 22595664 is about 4753.4896654984. The cubic root of 22595664 is about 282.7103463808.

It can be divided in two parts, 22 and 595664, that added together give a triangular number (595686 = T₁₀₉₁).

The spelling of 22595664 in words is "twenty-two million, five hundred ninety-five thousand, six hundred sixty-four".