1312444442 has 16 divisors (see below), whose sum is σ = 1975966272. Its totient is φ = 653794560.

The previous prime is 1312444433. The next prime is 1312444451. The reversal of 1312444442 is 2444442131.

It is an interprime number because it is at equal distance from previous prime (1312444433) and next prime (1312444451).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1077818 + ... + 1079034.

It is an arithmetic number, because the mean of its divisors is an integer number (123497892).

Almost surely, 2^1312444442 is an apocalyptic number.

1312444442 is a deficient number, since it is larger than the sum of its proper divisors (663521830).

1312444442 is a wasteful number, since it uses less digits than its factorization.

1312444442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2773.

The product of its digits is 12288, while the sum is 29.

The square root of 1312444442 is about 36227.6750841121. The cubic root of 1312444442 is about 1094.8643360350.

Adding to 1312444442 its reverse (2444442131), we get a palindrome (3756886573).

The spelling of 1312444442 in words is "one billion, three hundred twelve million, four hundred forty-four thousand, four hundred forty-two".