1344423431 has 4 divisors (see below), whose sum is σ = 1447840632. Its totient is φ = 1241006232.

The previous prime is 1344423403. The next prime is 1344423433. The reversal of 1344423431 is 1343244431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1343244431 = 139 ⋅9663629.

It is a cyclic number.

It is not a de Polignac number, because 1344423431 - 2²² = 1340229127 is a prime.

It is a super-2 number, since 2×1344423431² = 3614948723643623522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1344423394 and 1344423403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344423433) 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, 51708581 + ... + 51708606.

It is an arithmetic number, because the mean of its divisors is an integer number (361960158).

Almost surely, 2^1344423431 is an apocalyptic number.

1344423431 is a deficient number, since it is larger than the sum of its proper divisors (103417201).

1344423431 is a wasteful number, since it uses less digits than its factorization.

1344423431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103417200.

The product of its digits is 13824, while the sum is 29.

The square root of 1344423431 is about 36666.3801185773. The cubic root of 1344423431 is about 1103.6855526319.

Adding to 1344423431 its reverse (1343244431), we get a palindrome (2687667862).

The spelling of 1344423431 in words is "one billion, three hundred forty-four million, four hundred twenty-three thousand, four hundred thirty-one".