1304043213 has 16 divisors (see below), whose sum is σ = 1979260416. Its totient is φ = 755966640.

The previous prime is 1304043211. The next prime is 1304043227. The reversal of 1304043213 is 3123404031.

It is not a de Polignac number, because 1304043213 - 2¹ = 1304043211 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1304043213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304043211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 858295 + ... + 859812.

It is an arithmetic number, because the mean of its divisors is an integer number (123703776).

Almost surely, 2^1304043213 is an apocalyptic number.

It is an amenable number.

1304043213 is a deficient number, since it is larger than the sum of its proper divisors (675217203).

1304043213 is a wasteful number, since it uses less digits than its factorization.

1304043213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718144.

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

The square root of 1304043213 is about 36111.5385022571. The cubic root of 1304043213 is about 1092.5231822934.

Adding to 1304043213 its reverse (3123404031), we get a palindrome (4427447244).

The spelling of 1304043213 in words is "one billion, three hundred four million, forty-three thousand, two hundred thirteen".