1223255434 has 16 divisors (see below), whose sum is σ = 1967414400. Its totient is φ = 568361664.

The previous prime is 1223255401. The next prime is 1223255441. The reversal of 1223255434 is 4345523221.

It is a junction number, because it is equal to n+sod(n) for n = 1223255396 and 1223255405.

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, 225024 + ... + 230395.

It is an arithmetic number, because the mean of its divisors is an integer number (122963400).

Almost surely, 2^1223255434 is an apocalyptic number.

1223255434 is a deficient number, since it is larger than the sum of its proper divisors (744158966).

1223255434 is a wasteful number, since it uses less digits than its factorization.

1223255434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455517.

The product of its digits is 28800, while the sum is 31.

The square root of 1223255434 is about 34975.0687490389. The cubic root of 1223255434 is about 1069.4793035288.

Adding to 1223255434 its reverse (4345523221), we get a palindrome (5568778655).

The spelling of 1223255434 in words is "one billion, two hundred twenty-three million, two hundred fifty-five thousand, four hundred thirty-four".