20736022 has 16 divisors (see below), whose sum is σ = 33495120. Its totient is φ = 9591808.

The previous prime is 20736017. The next prime is 20736029. The reversal of 20736022 is 22063702.

It is a junction number, because it is equal to n+sod(n) for n = 20735984 and 20736002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20736029) 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 7 ways as a sum of consecutive naturals, for example, 3163 + ... + 7174.

It is an arithmetic number, because the mean of its divisors is an integer number (2093445).

Almost surely, 2^20736022 is an apocalyptic number.

20736022 is a deficient number, since it is larger than the sum of its proper divisors (12759098).

20736022 is a wasteful number, since it uses less digits than its factorization.

20736022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10415.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 20736022 is about 4553.6822462706. The cubic root of 20736022 is about 274.7315153722.

Adding to 20736022 its reverse (22063702), we get a palindrome (42799724).

The spelling of 20736022 in words is "twenty million, seven hundred thirty-six thousand, twenty-two".