22662990 has 120 divisors (see below), whose sum is σ = 71011512. Its totient is φ = 5171040.

The previous prime is 22662971. The next prime is 22663001. The reversal of 22662990 is 9926622.

22662990 is a `hidden beast` number, since 2 + 26 + 629 + 9 + 0 = 666.

It is a super-2 number, since 2×22662990² = 1027222231480200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 39405 + ... + 39975.

Almost surely, 2^22662990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22662990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35505756).

22662990 is an abundant number, since it is smaller than the sum of its proper divisors (48348522).

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

22662990 is a wasteful number, since it uses less digits than its factorization.

22662990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 22662990 is about 4760.5661428028. The cubic root of 22662990 is about 282.9908557106.

The spelling of 22662990 in words is "twenty-two million, six hundred sixty-two thousand, nine hundred ninety".