1223942258 has 16 divisors (see below), whose sum is σ = 2288931264. Its totient is φ = 476860560.

The previous prime is 1223942257. The next prime is 1223942273. The reversal of 1223942258 is 8522493221.

It is not an unprimeable number, because it can be changed into a prime (1223942257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3973685 + ... + 3973992.

It is an arithmetic number, because the mean of its divisors is an integer number (143058204).

Almost surely, 2^1223942258 is an apocalyptic number.

1223942258 is a deficient number, since it is larger than the sum of its proper divisors (1064989006).

1223942258 is a wasteful number, since it uses less digits than its factorization.

1223942258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7947697.

The product of its digits is 69120, while the sum is 38.

The square root of 1223942258 is about 34984.8861367305. The cubic root of 1223942258 is about 1069.6794270681.

The spelling of 1223942258 in words is "one billion, two hundred twenty-three million, nine hundred forty-two thousand, two hundred fifty-eight".