22444260 has 48 divisors (see below), whose sum is σ = 65016000. Its totient is φ = 5778304.

The previous prime is 22444259. The next prime is 22444271. The reversal of 22444260 is 6244422.

It is a self number, because there is not a number n which added to its sum of digits gives 22444260.

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, 4710 + ... + 8189.

It is an arithmetic number, because the mean of its divisors is an integer number (1354500).

Almost surely, 2^22444260 is an apocalyptic number.

22444260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22444260 is an abundant number, since it is smaller than the sum of its proper divisors (42571740).

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

22444260 is a wasteful number, since it uses less digits than its factorization.

22444260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12940 (or 12938 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 22444260 is about 4737.5373349452. The cubic root of 22444260 is about 282.0774898964.

Adding to 22444260 its reverse (6244422), we get a palindrome (28688682).

The spelling of 22444260 in words is "twenty-two million, four hundred forty-four thousand, two hundred sixty".