22441980 has 96 divisors (see below), whose sum is σ = 70479360. Its totient is φ = 5287680.

The previous prime is 22441963. The next prime is 22441981. The reversal of 22441980 is 8914422.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22441981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23961 + ... + 24879.

It is an arithmetic number, because the mean of its divisors is an integer number (734160).

Almost surely, 2^22441980 is an apocalyptic number.

22441980 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 22441980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35239680).

22441980 is an abundant number, since it is smaller than the sum of its proper divisors (48037380).

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

22441980 is a wasteful number, since it uses less digits than its factorization.

22441980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979 (or 977 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 22441980 is about 4737.2966974848. The cubic root of 22441980 is about 282.0679379597.

It can be divided in two parts, 2244 and 1980, that added together give a palindrome (4224).

The spelling of 22441980 in words is "twenty-two million, four hundred forty-one thousand, nine hundred eighty".