1444340431 has 2 divisors, whose sum is σ = 1444340432. Its totient is φ = 1444340430.

The previous prime is 1444340419. The next prime is 1444340441. The reversal of 1444340431 is 1340434441.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1444340431 - 2¹⁷ = 1444209359 is a prime.

It is a super-2 number, since 2×1444340431² = 4172238561242531522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1444340431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444340441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722170215 + 722170216.

It is an arithmetic number, because the mean of its divisors is an integer number (722170216).

Almost surely, 2^1444340431 is an apocalyptic number.

1444340431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444340431 is an equidigital number, since it uses as much as digits as its factorization.

1444340431 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1444340431 is about 38004.4790912861. The cubic root of 1444340431 is about 1130.3766804881.

Adding to 1444340431 its reverse (1340434441), we get a palindrome (2784774872).

The spelling of 1444340431 in words is "one billion, four hundred forty-four million, three hundred forty thousand, four hundred thirty-one".