1344403231 has 4 divisors (see below), whose sum is σ = 1423485792. Its totient is φ = 1265320672.

The previous prime is 1344403211. The next prime is 1344403253. The reversal of 1344403231 is 1323044431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1344403231 - 2¹⁵ = 1344370463 is a prime.

It is a super-2 number, since 2×1344403231² = 3614840095046478722, 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 = 1344403196 and 1344403205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344403201) 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, 39541255 + ... + 39541288.

It is an arithmetic number, because the mean of its divisors is an integer number (355871448).

Almost surely, 2^1344403231 is an apocalyptic number.

1344403231 is a deficient number, since it is larger than the sum of its proper divisors (79082561).

1344403231 is an equidigital number, since it uses as much as digits as its factorization.

1344403231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79082560.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1344403231 is about 36666.1046608445. The cubic root of 1344403231 is about 1103.6800249687.

Adding to 1344403231 its reverse (1323044431), we get a palindrome (2667447662).

The spelling of 1344403231 in words is "one billion, three hundred forty-four million, four hundred three thousand, two hundred thirty-one".