1344445679 has 4 divisors (see below), whose sum is σ = 1352693976. Its totient is φ = 1336197384.

The previous prime is 1344445667. The next prime is 1344445709. The reversal of 1344445679 is 9765444431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1344445679 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344445079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4123904 + ... + 4124229.

It is an arithmetic number, because the mean of its divisors is an integer number (338173494).

Almost surely, 2^1344445679 is an apocalyptic number.

1344445679 is a deficient number, since it is larger than the sum of its proper divisors (8248297).

1344445679 is an equidigital number, since it uses as much as digits as its factorization.

1344445679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8248296.

The product of its digits is 1451520, while the sum is 47.

The square root of 1344445679 is about 36666.6835015113. The cubic root of 1344445679 is about 1103.6916406595.

The spelling of 1344445679 in words is "one billion, three hundred forty-four million, four hundred forty-five thousand, six hundred seventy-nine".