22439616 has 56 divisors (see below), whose sum is σ = 60222384. Its totient is φ = 7372800.

The previous prime is 22439611. The next prime is 22439663. The reversal of 22439616 is 61693422.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (22439611) 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, 13216 + ... + 14816.

Almost surely, 2^22439616 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 22439616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30111192).

22439616 is an abundant number, since it is smaller than the sum of its proper divisors (37782768).

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

22439616 is a wasteful number, since it uses less digits than its factorization.

22439616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689 (or 1679 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 22439616 is about 4737.0471815256. The cubic root of 22439616 is about 282.0580334263.

The spelling of 22439616 in words is "twenty-two million, four hundred thirty-nine thousand, six hundred sixteen".