20030868 has 96 divisors (see below), whose sum is σ = 61057920. Its totient is φ = 5598720.

The previous prime is 20030849. The next prime is 20030893. The reversal of 20030868 is 86803002.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14796 + ... + 16092.

It is an arithmetic number, because the mean of its divisors is an integer number (636020).

Almost surely, 2^20030868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20030868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30528960).

20030868 is an abundant number, since it is smaller than the sum of its proper divisors (41027052).

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

20030868 is a wasteful number, since it uses less digits than its factorization.

20030868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334 (or 1326 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 20030868 is about 4475.5857717175. The cubic root of 20030868 is about 271.5813376152.

The spelling of 20030868 in words is "twenty million, thirty thousand, eight hundred sixty-eight".