13340691 has 54 divisors (see below), whose sum is σ = 24408540. Its totient is φ = 6997536.

The previous prime is 13340689. The next prime is 13340711. The reversal of 13340691 is 19604331.

It is not a de Polignac number, because 13340691 - 2¹ = 13340689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13340671) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 74440 + ... + 74618.

It is an arithmetic number, because the mean of its divisors is an integer number (452010).

Almost surely, 2^13340691 is an apocalyptic number.

13340691 is a deficient number, since it is larger than the sum of its proper divisors (11067849).

13340691 is a wasteful number, since it uses less digits than its factorization.

13340691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 13340691 is about 3652.4910677509. The cubic root of 13340691 is about 237.1698296709.

The spelling of 13340691 in words is "thirteen million, three hundred forty thousand, six hundred ninety-one".