20124868 has 6 divisors (see below), whose sum is σ = 35218526. Its totient is φ = 10062432.

The previous prime is 20124851. The next prime is 20124887. The reversal of 20124868 is 86842102.

It can be written as a sum of positive squares in only one way, i.e., 18045504 + 2079364 = 4248^2 + 1442^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2515605 + ... + 2515612.

Almost surely, 2^20124868 is an apocalyptic number.

It is an amenable number.

20124868 is a deficient number, since it is larger than the sum of its proper divisors (15093658).

20124868 is a wasteful number, since it uses less digits than its factorization.

20124868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5031221 (or 5031219 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 20124868 is about 4486.0748990627. The cubic root of 20124868 is about 272.0054965729.

The spelling of 20124868 in words is "twenty million, one hundred twenty-four thousand, eight hundred sixty-eight".