20025396 has 18 divisors (see below), whose sum is σ = 50619842. Its totient is φ = 6675120.

The previous prime is 20025391. The next prime is 20025403. The reversal of 20025396 is 69352002.

It can be written as a sum of positive squares in only one way, i.e., 11696400 + 8328996 = 3420^2 + 2886^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20025391) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278095 + ... + 278166.

Almost surely, 2^20025396 is an apocalyptic number.

It is an amenable number.

20025396 is an abundant number, since it is smaller than the sum of its proper divisors (30594446).

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

20025396 is a wasteful number, since it uses less digits than its factorization.

20025396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556271 (or 556266 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 20025396 is about 4474.9744133347. The cubic root of 20025396 is about 271.5566053134.

Adding to 20025396 its reverse (69352002), we get a palindrome (89377398).

The spelling of 20025396 in words is "twenty million, twenty-five thousand, three hundred ninety-six".