20023600 has 60 divisors (see below), whose sum is σ = 48641976. Its totient is φ = 7920640.

The previous prime is 20023589. The next prime is 20023609. The reversal of 20023600 is 632002.

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 11 ways as a sum of consecutive naturals, for example, 44979 + ... + 45421.

Almost surely, 2^20023600 is an apocalyptic number.

20023600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20023600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24320988).

20023600 is an abundant number, since it is smaller than the sum of its proper divisors (28618376).

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

20023600 is a wasteful number, since it uses less digits than its factorization.

20023600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 20023600 is about 4474.7737372967. The cubic root of 20023600 is about 271.5484867849.

Adding to 20023600 its reverse (632002), we get a palindrome (20655602).

The spelling of 20023600 in words is "twenty million, twenty-three thousand, six hundred".