1304032402 has 4 divisors (see below), whose sum is σ = 1956048606. Its totient is φ = 652016200.

The previous prime is 1304032399. The next prime is 1304032451. The reversal of 1304032402 is 2042304031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1268855641 + 35176761 = 35621^2 + 5931^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1304032402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326008099 + ... + 326008102.

Almost surely, 2^1304032402 is an apocalyptic number.

1304032402 is a deficient number, since it is larger than the sum of its proper divisors (652016204).

1304032402 is an equidigital number, since it uses as much as digits as its factorization.

1304032402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652016203.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1304032402 is about 36111.3888129493. The cubic root of 1304032402 is about 1092.5201631448.

Adding to 1304032402 its reverse (2042304031), we get a palindrome (3346336433).

The spelling of 1304032402 in words is "one billion, three hundred four million, thirty-two thousand, four hundred two".