20244226 has 4 divisors (see below), whose sum is σ = 30366342. Its totient is φ = 10122112.

The previous prime is 20244199. The next prime is 20244239. The reversal of 20244226 is 62244202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62244202 = 2 ⋅31122101.

It can be written as a sum of positive squares in only one way, i.e., 19351201 + 893025 = 4399^2 + 945^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20244197 and 20244206.

It is an unprimeable number.

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, 5061055 + ... + 5061058.

Almost surely, 2^20244226 is an apocalyptic number.

20244226 is a deficient number, since it is larger than the sum of its proper divisors (10122116).

20244226 is a wasteful number, since it uses less digits than its factorization.

20244226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10122115.

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

The square root of 20244226 is about 4499.3583987053. The cubic root of 20244226 is about 272.5421801552.

Adding to 20244226 its reverse (62244202), we get a palindrome (82488428).

The spelling of 20244226 in words is "twenty million, two hundred forty-four thousand, two hundred twenty-six".