20636126 has 16 divisors (see below), whose sum is σ = 35597184. Its totient is φ = 8788824.

The previous prime is 20636123. The next prime is 20636137. The reversal of 20636126 is 62163602.

It is a junction number, because it is equal to n+sod(n) for n = 20636095 and 20636104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20636123) 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, 2240 + ... + 6803.

It is an arithmetic number, because the mean of its divisors is an integer number (2224824).

Almost surely, 2^20636126 is an apocalyptic number.

20636126 is a deficient number, since it is larger than the sum of its proper divisors (14961058).

20636126 is a wasteful number, since it uses less digits than its factorization.

20636126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9215.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 20636126 is about 4542.7002982807. The cubic root of 20636126 is about 274.2896310463.

Adding to 20636126 its reverse (62163602), we get a palindrome (82799728).

The spelling of 20636126 in words is "twenty million, six hundred thirty-six thousand, one hundred twenty-six".