1306450642 has 16 divisors (see below), whose sum is σ = 2285337600. Its totient is φ = 559907124.

The previous prime is 1306450619. The next prime is 1306450657. The reversal of 1306450642 is 2460546031.

It is an unprimeable number.

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, 951538 + ... + 952909.

It is an arithmetic number, because the mean of its divisors is an integer number (142833600).

Almost surely, 2^1306450642 is an apocalyptic number.

1306450642 is a deficient number, since it is larger than the sum of its proper divisors (978886958).

1306450642 is an equidigital number, since it uses as much as digits as its factorization.

1306450642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904470 (or 1904456 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 1306450642 is about 36144.8563698903. The cubic root of 1306450642 is about 1093.1950810670.

Adding to 1306450642 its reverse (2460546031), we get a palindrome (3766996673).

The spelling of 1306450642 in words is "one billion, three hundred six million, four hundred fifty thousand, six hundred forty-two".