22490384 has 20 divisors (see below), whose sum is σ = 49800384. Its totient is φ = 9638688.

The previous prime is 22490381. The next prime is 22490401. The reversal of 22490384 is 48309422.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22490384.

It is not an unprimeable number, because it can be changed into a prime (22490381) 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, 100292 + ... + 100515.

Almost surely, 2^22490384 is an apocalyptic number.

It is an amenable number.

22490384 is an abundant number, since it is smaller than the sum of its proper divisors (27310000).

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

22490384 is a wasteful number, since it uses less digits than its factorization.

22490384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200822 (or 200816 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 22490384 is about 4742.4027665309. The cubic root of 22490384 is about 282.2705851449.

The spelling of 22490384 in words is "twenty-two million, four hundred ninety thousand, three hundred eighty-four".