20225226 has 32 divisors (see below), whose sum is σ = 46430208. Its totient is φ = 5753520.

The previous prime is 20225213. The next prime is 20225243. The reversal of 20225226 is 62252202.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10131 + ... + 11961.

It is an arithmetic number, because the mean of its divisors is an integer number (1450944).

Almost surely, 2^20225226 is an apocalyptic number.

20225226 is an abundant number, since it is smaller than the sum of its proper divisors (26204982).

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

20225226 is a wasteful number, since it uses less digits than its factorization.

20225226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 20225226 is about 4497.2464909097. The cubic root of 20225226 is about 272.4568896255.

Adding to 20225226 its reverse (62252202), we get a palindrome (82477428).

The spelling of 20225226 in words is "twenty million, two hundred twenty-five thousand, two hundred twenty-six".