22004260 has 12 divisors (see below), whose sum is σ = 46208988. Its totient is φ = 8801696.

The previous prime is 22004251. The next prime is 22004263. The reversal of 22004260 is 6240022.

It can be written as a sum of positive squares in 2 ways, for example, as 14197824 + 7806436 = 3768^2 + 2794^2 .

It is not an unprimeable number, because it can be changed into a prime (22004263) 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 3 ways as a sum of consecutive naturals, for example, 550087 + ... + 550126.

It is an arithmetic number, because the mean of its divisors is an integer number (3850749).

Almost surely, 2^22004260 is an apocalyptic number.

22004260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22004260 is an abundant number, since it is smaller than the sum of its proper divisors (24204728).

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

22004260 is a wasteful number, since it uses less digits than its factorization.

22004260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100222 (or 1100220 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22004260 is about 4690.8698553680. The cubic root of 22004260 is about 280.2220177885. Note that the first 3 decimals are identical.

Adding to 22004260 its reverse (6240022), we get a palindrome (28244282).

The spelling of 22004260 in words is "twenty-two million, four thousand, two hundred sixty".