1340323403 has 8 divisors (see below), whose sum is σ = 1413384000. Its totient is φ = 1267514568.

The previous prime is 1340323381. The next prime is 1340323417. The reversal of 1340323403 is 3043230431.

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 1340323403 - 2¹² = 1340319307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340323003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51953 + ... + 73346.

It is an arithmetic number, because the mean of its divisors is an integer number (176673000).

Almost surely, 2^1340323403 is an apocalyptic number.

1340323403 is a deficient number, since it is larger than the sum of its proper divisors (73060597).

1340323403 is a wasteful number, since it uses less digits than its factorization.

1340323403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125881.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 1340323403 is about 36610.4275173071. The cubic root of 1340323403 is about 1102.5624566850.

Adding to 1340323403 its reverse (3043230431), we get a palindrome (4383553834).

The spelling of 1340323403 in words is "one billion, three hundred forty million, three hundred twenty-three thousand, four hundred three".