22490364 has 24 divisors (see below), whose sum is σ = 56514640. Its totient is φ = 6920064.

The previous prime is 22490329. The next prime is 22490381. The reversal of 22490364 is 46309422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71929 + ... + 72240.

Almost surely, 2^22490364 is an apocalyptic number.

It is an amenable number.

22490364 is an abundant number, since it is smaller than the sum of its proper divisors (34024276).

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

22490364 is a wasteful number, since it uses less digits than its factorization.

22490364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144189 (or 144187 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 22490364 is about 4742.4006578947. The cubic root of 22490364 is about 282.2705014734.

Adding to 22490364 its reverse (46309422), we get a palindrome (68799786).

The spelling of 22490364 in words is "twenty-two million, four hundred ninety thousand, three hundred sixty-four".