1304434443 has 24 divisors (see below), whose sum is σ = 1965226752. Its totient is φ = 767820768.

The previous prime is 1304434441. The next prime is 1304434451. The reversal of 1304434443 is 3444344031.

It is not a de Polignac number, because 1304434443 - 2¹ = 1304434441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1304434443.

It is not an unprimeable number, because it can be changed into a prime (1304434441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44271 + ... + 67592.

It is an arithmetic number, because the mean of its divisors is an integer number (81884448).

Almost surely, 2^1304434443 is an apocalyptic number.

1304434443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1304434443 is a deficient number, since it is larger than the sum of its proper divisors (660792309).

1304434443 is a wasteful number, since it uses less digits than its factorization.

1304434443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111915 (or 111902 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

The square root of 1304434443 is about 36116.9550626849. The cubic root of 1304434443 is about 1092.6324284449.

Adding to 1304434443 its reverse (3444344031), we get a palindrome (4748778474).

The spelling of 1304434443 in words is "one billion, three hundred four million, four hundred thirty-four thousand, four hundred forty-three".