1223839146 has 32 divisors (see below), whose sum is σ = 2596321728. Its totient is φ = 383258880.

The previous prime is 1223839117. The next prime is 1223839147. The reversal of 1223839146 is 6419383221.

It is not an unprimeable number, because it can be changed into a prime (1223839147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47736 + ... + 68748.

It is an arithmetic number, because the mean of its divisors is an integer number (81135054).

Almost surely, 2^1223839146 is an apocalyptic number.

1223839146 is an abundant number, since it is smaller than the sum of its proper divisors (1372482582).

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

1223839146 is a wasteful number, since it uses less digits than its factorization.

1223839146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21606.

The product of its digits is 62208, while the sum is 39.

The square root of 1223839146 is about 34983.4124407554. The cubic root of 1223839146 is about 1069.6493875566.

The spelling of 1223839146 in words is "one billion, two hundred twenty-three million, eight hundred thirty-nine thousand, one hundred forty-six".