20224668 has 24 divisors (see below), whose sum is σ = 47651968. Its totient is φ = 6675696.

The previous prime is 20224667. The next prime is 20224691. The reversal of 20224668 is 86642202.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20224661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6946 + ... + 9417.

Almost surely, 2^20224668 is an apocalyptic number.

It is an amenable number.

20224668 is an abundant number, since it is smaller than the sum of its proper divisors (27427300).

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

20224668 is a wasteful number, since it uses less digits than its factorization.

20224668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16473 (or 16471 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 20224668 is about 4497.1844525214. The cubic root of 20224668 is about 272.4543839700.

The spelling of 20224668 in words is "twenty million, two hundred twenty-four thousand, six hundred sixty-eight".