1304005413 has 4 divisors (see below), whose sum is σ = 1738673888. Its totient is φ = 869336940.

The previous prime is 1304005361. The next prime is 1304005429. The reversal of 1304005413 is 3145004031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1304005413 - 2⁹ = 1304004901 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1304005413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304005453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217334233 + ... + 217334238.

It is an arithmetic number, because the mean of its divisors is an integer number (434668472).

Almost surely, 2^1304005413 is an apocalyptic number.

It is an amenable number.

1304005413 is a deficient number, since it is larger than the sum of its proper divisors (434668475).

1304005413 is an equidigital number, since it uses as much as digits as its factorization.

1304005413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434668474.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1304005413 is about 36111.0151200434. The cubic root of 1304005413 is about 1092.5126259522.

Adding to 1304005413 its reverse (3145004031), we get a palindrome (4449009444).

The spelling of 1304005413 in words is "one billion, three hundred four million, five thousand, four hundred thirteen".