1304403232 has 144 divisors (see below), whose sum is σ = 2995526016. Its totient is φ = 557568000.

The previous prime is 1304403203. The next prime is 1304403239. The reversal of 1304403232 is 2323044031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1304403239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8638357 + ... + 8638507.

It is an arithmetic number, because the mean of its divisors is an integer number (20802264).

Almost surely, 2^1304403232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1304403232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1497763008).

1304403232 is an abundant number, since it is smaller than the sum of its proper divisors (1691122784).

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

1304403232 is a wasteful number, since it uses less digits than its factorization.

1304403232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 1304403232 is about 36116.5229777176. The cubic root of 1304403232 is about 1092.6237139600.

Adding to 1304403232 its reverse (2323044031), we get a palindrome (3627447263).

The spelling of 1304403232 in words is "one billion, three hundred four million, four hundred three thousand, two hundred thirty-two".