20008226 has 16 divisors (see below), whose sum is σ = 34784640. Its totient is φ = 8453760.

The previous prime is 20008223. The next prime is 20008243. The reversal of 20008226 is 62280002.

It is a junction number, because it is equal to n+sod(n) for n = 20008198 and 20008207.

It is not an unprimeable number, because it can be changed into a prime (20008223) 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, 9071 + ... + 11058.

It is an arithmetic number, because the mean of its divisors is an integer number (2174040).

Almost surely, 2^20008226 is an apocalyptic number.

20008226 is a deficient number, since it is larger than the sum of its proper divisors (14776414).

20008226 is a wasteful number, since it uses less digits than its factorization.

20008226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20209.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 20008226 is about 4473.0555552106. The cubic root of 20008226 is about 271.4789712240.

Adding to 20008226 its reverse (62280002), we get a palindrome (82288228).

The spelling of 20008226 in words is "twenty million, eight thousand, two hundred twenty-six".