20204868 has 24 divisors (see below), whose sum is σ = 47387200. Its totient is φ = 6700320.

The previous prime is 20204861. The next prime is 20204903. The reversal of 20204868 is 86840202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20204861) 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, 1843 + ... + 6618.

Almost surely, 2^20204868 is an apocalyptic number.

It is an amenable number.

20204868 is an abundant number, since it is smaller than the sum of its proper divisors (27182332).

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

20204868 is a wasteful number, since it uses less digits than its factorization.

20204868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8667 (or 8665 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 20204868 is about 4494.9825361174. The cubic root of 20204868 is about 272.3654437675.

The spelling of 20204868 in words is "twenty million, two hundred four thousand, eight hundred sixty-eight".