20322485 has 8 divisors (see below), whose sum is σ = 24603480. Its totient is φ = 16113664.

The previous prime is 20322481. The next prime is 20322487. The reversal of 20322485 is 58422302.

It can be written as a sum of positive squares in 4 ways, for example, as 1304164 + 19018321 = 1142^2 + 4361^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20322485 - 2² = 20322481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17420 + ... + 18549.

It is an arithmetic number, because the mean of its divisors is an integer number (3075435).

Almost surely, 2^20322485 is an apocalyptic number.

It is an amenable number.

20322485 is a deficient number, since it is larger than the sum of its proper divisors (4280995).

20322485 is a wasteful number, since it uses less digits than its factorization.

20322485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36087.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 20322485 is about 4508.0466945230. The cubic root of 20322485 is about 272.8929213716.

Adding to 20322485 its reverse (58422302), we get a palindrome (78744787).

The spelling of 20322485 in words is "twenty million, three hundred twenty-two thousand, four hundred eighty-five".