22490736 has 20 divisors (see below), whose sum is σ = 58101192. Its totient is φ = 7496896.

The previous prime is 22490723. The next prime is 22490753. The reversal of 22490736 is 63709422.

It is a junction number, because it is equal to n+sod(n) for n = 22490697 and 22490706.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 234231 + ... + 234326.

Almost surely, 2^22490736 is an apocalyptic number.

It is an amenable number.

22490736 is an abundant number, since it is smaller than the sum of its proper divisors (35610456).

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

22490736 is a wasteful number, since it uses less digits than its factorization.

22490736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468568 (or 468562 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 22490736 is about 4742.4398783748. The cubic root of 22490736 is about 282.2720577554.

The spelling of 22490736 in words is "twenty-two million, four hundred ninety thousand, seven hundred thirty-six".