20023608 has 64 divisors (see below), whose sum is σ = 55411200. Its totient is φ = 5978880.

The previous prime is 20023589. The next prime is 20023609. The reversal of 20023608 is 80632002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18753 + ... + 19791.

It is an arithmetic number, because the mean of its divisors is an integer number (865800).

Almost surely, 2^20023608 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 20023608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27705600).

20023608 is an abundant number, since it is smaller than the sum of its proper divisors (35387592).

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

20023608 is a wasteful number, since it uses less digits than its factorization.

20023608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132 (or 1128 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 20023608 is about 4474.7746311965. The cubic root of 20023608 is about 271.5485229486.

The spelling of 20023608 in words is "twenty million, twenty-three thousand, six hundred eight".