1304223132 has 12 divisors (see below), whose sum is σ = 3043187336. Its totient is φ = 434741040.

The previous prime is 1304223077. The next prime is 1304223133. The reversal of 1304223132 is 2313224031.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1304223099 and 1304223108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304223133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54342619 + ... + 54342642.

Almost surely, 2^1304223132 is an apocalyptic number.

1304223132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1304223132 is an abundant number, since it is smaller than the sum of its proper divisors (1738964204).

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

1304223132 is a wasteful number, since it uses less digits than its factorization.

1304223132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108685268 (or 108685266 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1304223132 is about 36114.0295730067. The cubic root of 1304223132 is about 1092.5734251681.

Adding to 1304223132 its reverse (2313224031), we get a palindrome (3617447163).

The spelling of 1304223132 in words is "one billion, three hundred four million, two hundred twenty-three thousand, one hundred thirty-two".