1304431042 has 4 divisors (see below), whose sum is σ = 1956646566. Its totient is φ = 652215520.

The previous prime is 1304431033. The next prime is 1304431067. The reversal of 1304431042 is 2401344031.

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., 1038708441 + 265722601 = 32229^2 + 16301^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326107759 + ... + 326107762.

Almost surely, 2^1304431042 is an apocalyptic number.

1304431042 is a deficient number, since it is larger than the sum of its proper divisors (652215524).

1304431042 is an equidigital number, since it uses as much as digits as its factorization.

1304431042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652215523.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1304431042 is about 36116.9079795046. The cubic root of 1304431042 is about 1092.6314788517.

Adding to 1304431042 its reverse (2401344031), we get a palindrome (3705775073).

The spelling of 1304431042 in words is "one billion, three hundred four million, four hundred thirty-one thousand, forty-two".