20668124 has 36 divisors (see below), whose sum is σ = 40487160. Its totient is φ = 9204480.

The previous prime is 20668121. The next prime is 20668139. The reversal of 20668124 is 42186602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20668121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21494 + ... + 22434.

Almost surely, 2^20668124 is an apocalyptic number.

It is an amenable number.

20668124 is a deficient number, since it is larger than the sum of its proper divisors (19819036).

20668124 is a wasteful number, since it uses less digits than its factorization.

20668124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998 (or 979 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 20668124 is about 4546.2208481331. The cubic root of 20668124 is about 274.4313273314.

The spelling of 20668124 in words is "twenty million, six hundred sixty-eight thousand, one hundred twenty-four".