13340831 has 16 divisors (see below), whose sum is σ = 16488960. Its totient is φ = 10536480.

The previous prime is 13340813. The next prime is 13340849. The reversal of 13340831 is 13804331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13340813) and next prime (13340849).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13340831 is a prime.

It is a super-2 number, since 2×13340831² = 355955543541122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13340797 and 13340806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13340861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3566 + ... + 6276.

It is an arithmetic number, because the mean of its divisors is an integer number (1030560).

Almost surely, 2^13340831 is an apocalyptic number.

13340831 is a deficient number, since it is larger than the sum of its proper divisors (3148129).

13340831 is a wasteful number, since it uses less digits than its factorization.

13340831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2774.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 13340831 is about 3652.5102327030. The cubic root of 13340831 is about 237.1706593046.

The spelling of 13340831 in words is "thirteen million, three hundred forty thousand, eight hundred thirty-one".