20630126 has 16 divisors (see below), whose sum is σ = 35227008. Its totient is φ = 8969400.

The previous prime is 20630123. The next prime is 20630147. The reversal of 20630126 is 62103602.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20630098 and 20630107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20630123) 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, 19880 + ... + 20891.

It is an arithmetic number, because the mean of its divisors is an integer number (2201688).

Almost surely, 2^20630126 is an apocalyptic number.

20630126 is a deficient number, since it is larger than the sum of its proper divisors (14596882).

20630126 is a wasteful number, since it uses less digits than its factorization.

20630126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40807.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 20630126 is about 4542.0398501114. The cubic root of 20630126 is about 274.2630450273.

Adding to 20630126 its reverse (62103602), we get a palindrome (82733728).

The spelling of 20630126 in words is "twenty million, six hundred thirty thousand, one hundred twenty-six".