1344444431 has 32 divisors (see below), whose sum is σ = 1524937536. Its totient is φ = 1184832000.

The previous prime is 1344444403. The next prime is 1344444443.

1344444431 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-1344444431 is a prime.

It is a super-2 number, since 2×1344444431² = 3615061656093827522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344444401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9813395 + ... + 9813531.

It is an arithmetic number, because the mean of its divisors is an integer number (47654298).

Almost surely, 2^1344444431 is an apocalyptic number.

1344444431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1344444431 is a deficient number, since it is larger than the sum of its proper divisors (180493105).

1344444431 is a wasteful number, since it uses less digits than its factorization.

1344444431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 322 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

The square root of 1344444431 is about 36666.6664833333. Note that the first 3 decimals coincide. The cubic root of 1344444431 is about 1103.6912991538.

It can be divided in two parts, 13444 and 44431, that added together give a palindrome (57875).

The spelling of 1344444431 in words is "one billion, three hundred forty-four million, four hundred forty-four thousand, four hundred thirty-one".