20025324 has 72 divisors (see below), whose sum is σ = 56194320. Its totient is φ = 5961600.

The previous prime is 20025311. The next prime is 20025329. The reversal of 20025324 is 42352002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20025297 and 20025306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20025329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23742 + ... + 24570.

Almost surely, 2^20025324 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 20025324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28097160).

20025324 is an abundant number, since it is smaller than the sum of its proper divisors (36168996).

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

20025324 is a wasteful number, since it uses less digits than its factorization.

20025324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911 (or 906 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 20025324 is about 4474.9663685887. The cubic root of 20025324 is about 271.5562798583.

Adding to 20025324 its reverse (42352002), we get a palindrome (62377326).

The spelling of 20025324 in words is "twenty million, twenty-five thousand, three hundred twenty-four".