1343440443 has 32 divisors (see below), whose sum is σ = 1875456000. Its totient is φ = 854685216.

The previous prime is 1343440409. The next prime is 1343440447. The reversal of 1343440443 is 3440443431.

It is not a de Polignac number, because 1343440443 - 2⁸ = 1343440187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1343440443.

It is not an unprimeable number, because it can be changed into a prime (1343440447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1514146 + ... + 1515032.

It is an arithmetic number, because the mean of its divisors is an integer number (58608000).

Almost surely, 2^1343440443 is an apocalyptic number.

1343440443 is a deficient number, since it is larger than the sum of its proper divisors (532015557).

1343440443 is a wasteful number, since it uses less digits than its factorization.

1343440443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191.

The product of its (nonzero) digits is 27648, while the sum is 30.

The square root of 1343440443 is about 36652.9731809031. The cubic root of 1343440443 is about 1103.4164969782.

Adding to 1343440443 its reverse (3440443431), we get a palindrome (4783883874).

The spelling of 1343440443 in words is "one billion, three hundred forty-three million, four hundred forty thousand, four hundred forty-three".