22422516 has 48 divisors (see below), whose sum is σ = 55085184. Its totient is φ = 7085056.

The previous prime is 22422511. The next prime is 22422523. The reversal of 22422516 is 61522422.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22422511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37516 + ... + 38108.

It is an arithmetic number, because the mean of its divisors is an integer number (1147608).

Almost surely, 2^22422516 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 22422516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27542592).

22422516 is an abundant number, since it is smaller than the sum of its proper divisors (32662668).

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

22422516 is a wasteful number, since it uses less digits than its factorization.

22422516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760 (or 758 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 22422516 is about 4735.2419156786. The cubic root of 22422516 is about 281.9863682360.

Adding to 22422516 its reverse (61522422), we get a palindrome (83944938).

The spelling of 22422516 in words is "twenty-two million, four hundred twenty-two thousand, five hundred sixteen".