13820339 has 8 divisors (see below), whose sum is σ = 15072960. Its totient is φ = 12594816.

The previous prime is 13820299. The next prime is 13820381. The reversal of 13820339 is 93302831.

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

It is not a de Polignac number, because 13820339 - 2⁸ = 13820083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13820399) 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 7 ways as a sum of consecutive naturals, for example, 5702 + ... + 7755.

It is an arithmetic number, because the mean of its divisors is an integer number (1884120).

Almost surely, 2^13820339 is an apocalyptic number.

13820339 is a deficient number, since it is larger than the sum of its proper divisors (1252621).

13820339 is a wasteful number, since it uses less digits than its factorization.

13820339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13549.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 13820339 is about 3717.5716536470. The cubic root of 13820339 is about 239.9788117869.

The spelling of 13820339 in words is "thirteen million, eight hundred twenty thousand, three hundred thirty-nine".