13440837 has 8 divisors (see below), whose sum is σ = 17942400. Its totient is φ = 8949920.

The previous prime is 13440821. The next prime is 13440839. The reversal of 13440837 is 73804431.

13440837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13440837 - 2⁴ = 13440821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13440839) 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, 1012 + ... + 5282.

It is an arithmetic number, because the mean of its divisors is an integer number (2242800).

Almost surely, 2^13440837 is an apocalyptic number.

It is an amenable number.

13440837 is a deficient number, since it is larger than the sum of its proper divisors (4501563).

13440837 is a wasteful number, since it uses less digits than its factorization.

13440837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5323.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 13440837 is about 3666.1747094213. The cubic root of 13440837 is about 237.7618135861.

The spelling of 13440837 in words is "thirteen million, four hundred forty thousand, eight hundred thirty-seven".