20327868 has 96 divisors (see below), whose sum is σ = 58544640. Its totient is φ = 6048000.

The previous prime is 20327861. The next prime is 20327873. The reversal of 20327868 is 86872302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20327861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84228 + ... + 84468.

It is an arithmetic number, because the mean of its divisors is an integer number (609840).

Almost surely, 2^20327868 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 20327868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29272320).

20327868 is an abundant number, since it is smaller than the sum of its proper divisors (38216772).

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

20327868 is a wasteful number, since it uses less digits than its factorization.

20327868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 20327868 is about 4508.6436984974. The cubic root of 20327868 is about 272.9170137815.

The spelling of 20327868 in words is "twenty million, three hundred twenty-seven thousand, eight hundred sixty-eight".