1331344342 has 8 divisors (see below), whose sum is σ = 2005972416. Its totient is φ = 662686872.

The previous prime is 1331344291. The next prime is 1331344369. The reversal of 1331344342 is 2434431331.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1331344342.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1492093 + ... + 1492984.

It is an arithmetic number, because the mean of its divisors is an integer number (250746552).

Almost surely, 2^1331344342 is an apocalyptic number.

1331344342 is a deficient number, since it is larger than the sum of its proper divisors (674628074).

1331344342 is a wasteful number, since it uses less digits than its factorization.

1331344342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985302.

The product of its digits is 10368, while the sum is 28.

The square root of 1331344342 is about 36487.5916168771. The cubic root of 1331344342 is about 1100.0948518759.

Adding to 1331344342 its reverse (2434431331), we get a palindrome (3765775673).

The spelling of 1331344342 in words is "one billion, three hundred thirty-one million, three hundred forty-four thousand, three hundred forty-two".