1344440231 has 8 divisors (see below), whose sum is σ = 1348848000. Its totient is φ = 1340040312.

The previous prime is 1344440191. The next prime is 1344440233. The reversal of 1344440231 is 1320444431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1344440231 is a prime.

It is a super-2 number, since 2×1344440231² = 3615039069462666722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1344440231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344440233) by changing a digit.

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, 609176 + ... + 611378.

It is an arithmetic number, because the mean of its divisors is an integer number (168606000).

Almost surely, 2^1344440231 is an apocalyptic number.

1344440231 is a deficient number, since it is larger than the sum of its proper divisors (4407769).

1344440231 is a wasteful number, since it uses less digits than its factorization.

1344440231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3925.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 1344440231 is about 36666.6092105610. The cubic root of 1344440231 is about 1103.6901498542.

Adding to 1344440231 its reverse (1320444431), we get a palindrome (2664884662).

The spelling of 1344440231 in words is "one billion, three hundred forty-four million, four hundred forty thousand, two hundred thirty-one".