22420244 has 36 divisors (see below), whose sum is σ = 49795200. Its totient is φ = 8734320.

The previous prime is 22420241. The next prime is 22420249. The reversal of 22420244 is 44202422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22420241) 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 11 ways as a sum of consecutive naturals, for example, 3044 + ... + 7355.

It is an arithmetic number, because the mean of its divisors is an integer number (1383200).

Almost surely, 2^22420244 is an apocalyptic number.

It is an amenable number.

22420244 is an abundant number, since it is smaller than the sum of its proper divisors (27374956).

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

22420244 is a wasteful number, since it uses less digits than its factorization.

22420244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10428 (or 10419 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 22420244 is about 4735.0020063354. The cubic root of 22420244 is about 281.9768436630.

Adding to 22420244 its reverse (44202422), we get a palindrome (66622666).

The spelling of 22420244 in words is "twenty-two million, four hundred twenty thousand, two hundred forty-four".