22990616 has 64 divisors (see below), whose sum is σ = 50561280. Its totient is φ = 9694080.

The previous prime is 22990603. The next prime is 22990619. The reversal of 22990616 is 61609922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22990619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74735 + ... + 75041.

It is an arithmetic number, because the mean of its divisors is an integer number (790020).

Almost surely, 2^22990616 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 22990616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25280640).

22990616 is an abundant number, since it is smaller than the sum of its proper divisors (27570664).

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

22990616 is a wasteful number, since it uses less digits than its factorization.

22990616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 22990616 is about 4794.8530738699. The cubic root of 22990616 is about 284.3480161330.

It can be divided in two parts, 229906 and 16, that added together give a palindrome (229922).

The spelling of 22990616 in words is "twenty-two million, nine hundred ninety thousand, six hundred sixteen".