20326156 has 12 divisors (see below), whose sum is σ = 35938168. Its totient is φ = 10058112.

The previous prime is 20326099. The next prime is 20326157. The reversal of 20326156 is 65162302.

It is a self number, because there is not a number n which added to its sum of digits gives 20326156.

It is not an unprimeable number, because it can be changed into a prime (20326157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25806 + ... + 26581.

Almost surely, 2^20326156 is an apocalyptic number.

It is an amenable number.

20326156 is a deficient number, since it is larger than the sum of its proper divisors (15612012).

20326156 is a wasteful number, since it uses less digits than its factorization.

20326156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52488 (or 52486 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 20326156 is about 4508.4538369601. The cubic root of 20326156 is about 272.9093519344.

Adding to 20326156 its reverse (65162302), we get a palindrome (85488458).

The spelling of 20326156 in words is "twenty million, three hundred twenty-six thousand, one hundred fifty-six".