220523226 has 72 divisors (see below), whose sum is σ = 564026400. Its totient is φ = 57269520.

The previous prime is 220523213. The next prime is 220523239. The reversal of 220523226 is 622325022.

It is an interprime number because it is at equal distance from previous prime (220523213) and next prime (220523239).

It is a junction number, because it is equal to n+sod(n) for n = 220523196 and 220523205.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 32475 + ... + 38673.

It is an arithmetic number, because the mean of its divisors is an integer number (7833700).

Almost surely, 2^220523226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220523226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282013200).

220523226 is an abundant number, since it is smaller than the sum of its proper divisors (343503174).

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

220523226 is a wasteful number, since it uses less digits than its factorization.

220523226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6240 (or 6222 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 220523226 is about 14850.0244444243. The cubic root of 220523226 is about 604.1592730119.

Adding to 220523226 its reverse (622325022), we get a palindrome (842848248).

The spelling of 220523226 in words is "two hundred twenty million, five hundred twenty-three thousand, two hundred twenty-six".