1344440431 has 8 divisors (see below), whose sum is σ = 1351597104. Its totient is φ = 1337297280.

The previous prime is 1344440401. The next prime is 1344440441. The reversal of 1344440431 is 1340444431.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1344440431 - 2⁷ = 1344440303 is a prime.

It is a super-2 number, since 2×1344440431² = 3615040145014931522, 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 1344440431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344440401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241380 + ... + 246886.

It is an arithmetic number, because the mean of its divisors is an integer number (168949638).

Almost surely, 2^1344440431 is an apocalyptic number.

1344440431 is a deficient number, since it is larger than the sum of its proper divisors (7156673).

1344440431 is a wasteful number, since it uses less digits than its factorization.

1344440431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6761.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 1344440431 is about 36666.6119378379. The cubic root of 1344440431 is about 1103.6902045828.

Adding to 1344440431 its reverse (1340444431), we get a palindrome (2684884862).

The spelling of 1344440431 in words is "one billion, three hundred forty-four million, four hundred forty thousand, four hundred thirty-one".