22441220 has 24 divisors (see below), whose sum is σ = 47343744. Its totient is φ = 8935136.

The previous prime is 22441193. The next prime is 22441249. The reversal of 22441220 is 2214422.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2069 + ... + 7011.

It is an arithmetic number, because the mean of its divisors is an integer number (1972656).

Almost surely, 2^22441220 is an apocalyptic number.

22441220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22441220 is an abundant number, since it is smaller than the sum of its proper divisors (24902524).

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

22441220 is a wasteful number, since it uses less digits than its factorization.

22441220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5179 (or 5177 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 22441220 is about 4737.2164822816. The cubic root of 22441220 is about 282.0647538370.

Adding to 22441220 its reverse (2214422), we get a palindrome (24655642).

The spelling of 22441220 in words is "twenty-two million, four hundred forty-one thousand, two hundred twenty".