13338831 has 16 divisors (see below), whose sum is σ = 19463040. Its totient is φ = 8058720.

The previous prime is 13338823. The next prime is 13338839. The reversal of 13338831 is 13883331.

It is an interprime number because it is at equal distance from previous prime (13338823) and next prime (13338839).

It is not a de Polignac number, because 13338831 - 2³ = 13338823 is a prime.

It is a super-2 number, since 2×13338831² = 355848824893122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13338839) 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, 20101 + ... + 20753.

It is an arithmetic number, because the mean of its divisors is an integer number (1216440).

Almost surely, 2^13338831 is an apocalyptic number.

13338831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13338831 is a deficient number, since it is larger than the sum of its proper divisors (6124209).

13338831 is a wasteful number, since it uses less digits than its factorization.

13338831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286.

The product of its digits is 5184, while the sum is 30.

The square root of 13338831 is about 3652.2364381294. The cubic root of 13338831 is about 237.1588068439.

The spelling of 13338831 in words is "thirteen million, three hundred thirty-eight thousand, eight hundred thirty-one".