1223394239 has 8 divisors (see below), whose sum is σ = 1302849360. Its totient is φ = 1144771456.

The previous prime is 1223394229. The next prime is 1223394269. The reversal of 1223394239 is 9324933221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1223394239 - 2²⁸ = 954958783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223394209) 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, 205049 + ... + 210930.

It is an arithmetic number, because the mean of its divisors is an integer number (162856170).

Almost surely, 2^1223394239 is an apocalyptic number.

1223394239 is a deficient number, since it is larger than the sum of its proper divisors (79455121).

1223394239 is a wasteful number, since it uses less digits than its factorization.

1223394239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416169.

The product of its digits is 69984, while the sum is 38.

The square root of 1223394239 is about 34977.0530348113. The cubic root of 1223394239 is about 1069.5197539139.

The spelling of 1223394239 in words is "one billion, two hundred twenty-three million, three hundred ninety-four thousand, two hundred thirty-nine".