20322136 has 16 divisors (see below), whose sum is σ = 38156040. Its totient is φ = 10147200.

The previous prime is 20322131. The next prime is 20322163. The reversal of 20322136 is 63122302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7200 + ... + 9616.

Almost surely, 2^20322136 is an apocalyptic number.

It is an amenable number.

20322136 is a deficient number, since it is larger than the sum of its proper divisors (17833904).

20322136 is a wasteful number, since it uses less digits than its factorization.

20322136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474 (or 3470 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 20322136 is about 4508.0079857959. The cubic root of 20322136 is about 272.8913592238.

Adding to 20322136 its reverse (63122302), we get a palindrome (83444438).

The spelling of 20322136 in words is "twenty million, three hundred twenty-two thousand, one hundred thirty-six".