1304221344 has 48 divisors (see below), whose sum is σ = 3441553920. Its totient is φ = 432458240.

The previous prime is 1304221343. The next prime is 1304221363. The reversal of 1304221344 is 4431224031.

1304221344 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1304221343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17229 + ... + 53900.

It is an arithmetic number, because the mean of its divisors is an integer number (71699040).

Almost surely, 2^1304221344 is an apocalyptic number.

It is an amenable number.

1304221344 is an abundant number, since it is smaller than the sum of its proper divisors (2137332576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1304221344 is a wasteful number, since it uses less digits than its factorization.

1304221344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71333 (or 71325 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1304221344 is about 36114.0048180758. The cubic root of 1304221344 is about 1092.5729258869.

Adding to 1304221344 its reverse (4431224031), we get a palindrome (5735445375).

The spelling of 1304221344 in words is "one billion, three hundred four million, two hundred twenty-one thousand, three hundred forty-four".