243122226 has 16 divisors (see below), whose sum is σ = 487300224. Its totient is φ = 80864784.

The previous prime is 243122207. The next prime is 243122237. The reversal of 243122226 is 622221342.

It is a happy number.

243122226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 243122196 and 243122205.

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, 40981 + ... + 46536.

It is an arithmetic number, because the mean of its divisors is an integer number (30456264).

Almost surely, 2^243122226 is an apocalyptic number.

243122226 is an abundant number, since it is smaller than the sum of its proper divisors (244177998).

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

243122226 is a wasteful number, since it uses less digits than its factorization.

243122226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87985.

The product of its digits is 2304, while the sum is 24.

The square root of 243122226 is about 15592.3771760434. The cubic root of 243122226 is about 624.1297550270.

Adding to 243122226 its reverse (622221342), we get a palindrome (865343568).

The spelling of 243122226 in words is "two hundred forty-three million, one hundred twenty-two thousand, two hundred twenty-six".