22622490 has 80 divisors (see below), whose sum is σ = 66385440. Its totient is φ = 5482080.

The previous prime is 22622489. The next prime is 22622497. The reversal of 22622490 is 9422622.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22622497) 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 39 ways as a sum of consecutive naturals, for example, 7641 + ... + 10179.

It is an arithmetic number, because the mean of its divisors is an integer number (829818).

Almost surely, 2^22622490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22622490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33192720).

22622490 is an abundant number, since it is smaller than the sum of its proper divisors (43762950).

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

22622490 is a wasteful number, since it uses less digits than its factorization.

22622490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569 (or 2560 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 22622490 is about 4756.3105449497. The cubic root of 22622490 is about 282.8221818262.

The spelling of 22622490 in words is "twenty-two million, six hundred twenty-two thousand, four hundred ninety".