20122826 has 4 divisors (see below), whose sum is σ = 30184242. Its totient is φ = 10061412.

The previous prime is 20122819. The next prime is 20122829. The reversal of 20122826 is 62822102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12967201 + 7155625 = 3601^2 + 2675^2 .

It is not an unprimeable number, because it can be changed into a prime (20122829) 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 as a sum of consecutive naturals, namely, 5030705 + ... + 5030708.

Almost surely, 2^20122826 is an apocalyptic number.

20122826 is a deficient number, since it is larger than the sum of its proper divisors (10061416).

20122826 is a wasteful number, since it uses less digits than its factorization.

20122826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10061415.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 20122826 is about 4485.8473001207. The cubic root of 20122826 is about 271.9962964461.

Adding to 20122826 its reverse (62822102), we get a palindrome (82944928).

The spelling of 20122826 in words is "twenty million, one hundred twenty-two thousand, eight hundred twenty-six".