20606226 has 16 divisors (see below), whose sum is σ = 41430528. Its totient is φ = 6832400.

The previous prime is 20606219. The next prime is 20606237. The reversal of 20606226 is 62260602.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20606196 and 20606205.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7845 + ... + 10136.

It is an arithmetic number, because the mean of its divisors is an integer number (2589408).

Almost surely, 2^20606226 is an apocalyptic number.

20606226 is an abundant number, since it is smaller than the sum of its proper divisors (20824302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20606226 is a wasteful number, since it uses less digits than its factorization.

20606226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18177.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20606226 is about 4539.4081111969. The cubic root of 20606226 is about 274.1570928600.

Adding to 20606226 its reverse (62260602), we get a palindrome (82866828).

The spelling of 20606226 in words is "twenty million, six hundred six thousand, two hundred twenty-six".