13340643 has 8 divisors (see below), whose sum is σ = 17878608. Its totient is φ = 8848224.

The previous prime is 13340627. The next prime is 13340659. The reversal of 13340643 is 34604331.

It is an interprime number because it is at equal distance from previous prime (13340627) and next prime (13340659).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13340643 - 2⁴ = 13340627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13340623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10696 + ... + 11877.

It is an arithmetic number, because the mean of its divisors is an integer number (2234826).

Almost surely, 2^13340643 is an apocalyptic number.

13340643 is a deficient number, since it is larger than the sum of its proper divisors (4537965).

13340643 is a wasteful number, since it uses less digits than its factorization.

13340643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22773.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 13340643 is about 3652.4844968870. The cubic root of 13340643 is about 237.1695452237.

Adding to 13340643 its reverse (34604331), we get a palindrome (47944974).

The spelling of 13340643 in words is "thirteen million, three hundred forty thousand, six hundred forty-three".