22441620 has 48 divisors (see below), whose sum is σ = 63278208. Its totient is φ = 5942400.

The previous prime is 22441619. The next prime is 22441663. The reversal of 22441620 is 2614422.

It is a congruent number.

It is an unprimeable number.

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, 7822 + ... + 10298.

It is an arithmetic number, because the mean of its divisors is an integer number (1318296).

Almost surely, 2^22441620 is an apocalyptic number.

22441620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22441620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31639104).

22441620 is an abundant number, since it is smaller than the sum of its proper divisors (40836588).

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

22441620 is a wasteful number, since it uses less digits than its factorization.

22441620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640 (or 2638 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 22441620 is about 4737.2587009789. The cubic root of 22441620 is about 282.0664297000.

The spelling of 22441620 in words is "twenty-two million, four hundred forty-one thousand, six hundred twenty".