1304344345 has 4 divisors (see below), whose sum is σ = 1565213220. Its totient is φ = 1043475472.

The previous prime is 1304344333. The next prime is 1304344369. The reversal of 1304344345 is 5434434031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5434434031 = 13 ⋅418033387.

It can be written as a sum of positive squares in 2 ways, for example, as 179345664 + 1124998681 = 13392^2 + 33541^2 .

It is a cyclic number.

It is not a de Polignac number, because 1304344345 - 2¹¹ = 1304342297 is a prime.

It is an unprimeable number.

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, 130434430 + ... + 130434439.

It is an arithmetic number, because the mean of its divisors is an integer number (391303305).

Almost surely, 2^1304344345 is an apocalyptic number.

It is an amenable number.

1304344345 is a deficient number, since it is larger than the sum of its proper divisors (260868875).

1304344345 is an equidigital number, since it uses as much as digits as its factorization.

1304344345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260868874.

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 1304344345 is about 36115.7077322320. The cubic root of 1304344345 is about 1092.6072716260.

Adding to 1304344345 its reverse (5434434031), we get a palindrome (6738778376).

The spelling of 1304344345 in words is "one billion, three hundred four million, three hundred forty-four thousand, three hundred forty-five".