1340303 has 4 divisors (see below), whose sum is σ = 1363080. Its totient is φ = 1317528.

The previous prime is 1340291. The next prime is 1340321. The reversal of 1340303 is 3030431.

It is a happy number.

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 1340303 - 2⁸ = 1340047 is a prime.

It is a Duffinian number.

1340303 is a modest number, since divided by 303 gives 134 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340323) 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, 11300 + ... + 11417.

It is an arithmetic number, because the mean of its divisors is an integer number (340770).

2^1340303 is an apocalyptic number.

1340303 is a deficient number, since it is larger than the sum of its proper divisors (22777).

1340303 is an equidigital number, since it uses as much as digits as its factorization.

1340303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22776.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 1340303 is about 1157.7145589479. The cubic root of 1340303 is about 110.2556862091.

Adding to 1340303 its reverse (3030431), we get a palindrome (4370734).

The spelling of 1340303 in words is "one million, three hundred forty thousand, three hundred three".