1304321402 has 8 divisors (see below), whose sum is σ = 1964601012. Its totient is φ = 649454400.

The previous prime is 1304321387. The next prime is 1304321407. The reversal of 1304321402 is 2041234031.

It can be written as a sum of positive squares in 2 ways, for example, as 981005041 + 323316361 = 31321^2 + 17981^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1304321407) 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, 1352549 + ... + 1353512.

Almost surely, 2^1304321402 is an apocalyptic number.

1304321402 is a deficient number, since it is larger than the sum of its proper divisors (660279610).

1304321402 is a wasteful number, since it uses less digits than its factorization.

1304321402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706304.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1304321402 is about 36115.3900989592. The cubic root of 1304321402 is about 1092.6008653842.

Adding to 1304321402 its reverse (2041234031), we get a palindrome (3345555433).

The spelling of 1304321402 in words is "one billion, three hundred four million, three hundred twenty-one thousand, four hundred two".