22328656 has 40 divisors (see below), whose sum is σ = 50137664. Its totient is φ = 9434880.

The previous prime is 22328627. The next prime is 22328659. The reversal of 22328656 is 65682322.

It is a super-3 number, since 3×22328656³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22328659) 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 7 ways as a sum of consecutive naturals, for example, 6811 + ... + 9541.

Almost surely, 2^22328656 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 22328656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25068832).

22328656 is an abundant number, since it is smaller than the sum of its proper divisors (27809008).

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

22328656 is a wasteful number, since it uses less digits than its factorization.

22328656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819 (or 2813 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 22328656 is about 4725.3207298553. The cubic root of 22328656 is about 281.5923557024.

The spelling of 22328656 in words is "twenty-two million, three hundred twenty-eight thousand, six hundred fifty-six".