1304220343 has 8 divisors (see below), whose sum is σ = 1357103808. Its totient is φ = 1252384224.

The previous prime is 1304220319. The next prime is 1304220353. The reversal of 1304220343 is 3430224031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1304220343 - 2²¹ = 1302123191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304220353) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 259296 + ... + 264277.

It is an arithmetic number, because the mean of its divisors is an integer number (169637976).

Almost surely, 2^1304220343 is an apocalyptic number.

1304220343 is a deficient number, since it is larger than the sum of its proper divisors (52883465).

1304220343 is an equidigital number, since it uses as much as digits as its factorization.

1304220343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523673.

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

The square root of 1304220343 is about 36113.9909591837. The cubic root of 1304220343 is about 1092.5726463674.

Adding to 1304220343 its reverse (3430224031), we get a palindrome (4734444374).

The spelling of 1304220343 in words is "one billion, three hundred four million, two hundred twenty thousand, three hundred forty-three".