22490505 has 48 divisors (see below), whose sum is σ = 40772160. Its totient is φ = 11458944.

The previous prime is 22490467. The next prime is 22490521. The reversal of 22490505 is 50509422.

It is not a de Polignac number, because 22490505 - 2⁸ = 22490249 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 114067 + ... + 114263.

It is an arithmetic number, because the mean of its divisors is an integer number (849420).

Almost surely, 2^22490505 is an apocalyptic number.

It is an amenable number.

22490505 is a deficient number, since it is larger than the sum of its proper divisors (18281655).

22490505 is a wasteful number, since it uses less digits than its factorization.

22490505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 22490505 is about 4742.4155237600. The cubic root of 22490505 is about 282.2710913565.

Adding to 22490505 its reverse (50509422), we get a palindrome (72999927).

The spelling of 22490505 in words is "twenty-two million, four hundred ninety thousand, five hundred five".