20226244 has 6 divisors (see below), whose sum is σ = 35395934. Its totient is φ = 10113120.

The previous prime is 20226233. The next prime is 20226247. The reversal of 20226244 is 44262202.

It can be written as a sum of positive squares in only one way, i.e., 20142144 + 84100 = 4488^2 + 290^2 .

It is not an unprimeable number, because it can be changed into a prime (20226247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2528277 + ... + 2528284.

Almost surely, 2^20226244 is an apocalyptic number.

It is an amenable number.

20226244 is a deficient number, since it is larger than the sum of its proper divisors (15169690).

20226244 is a wasteful number, since it uses less digits than its factorization.

20226244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5056565 (or 5056563 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 20226244 is about 4497.3596698507. The cubic root of 20226244 is about 272.4614607563.

Adding to 20226244 its reverse (44262202), we get a palindrome (64488446).

The spelling of 20226244 in words is "twenty million, two hundred twenty-six thousand, two hundred forty-four".