13785842 has 8 divisors (see below), whose sum is σ = 23632896. Its totient is φ = 5908212.

The previous prime is 13785841. The next prime is 13785859. The reversal of 13785842 is 24858731.

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

It is a junction number, because it is equal to n+sod(n) for n = 13785796 and 13785805.

It is not an unprimeable number, because it can be changed into a prime (13785841) 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 3 ways as a sum of consecutive naturals, for example, 492338 + ... + 492365.

It is an arithmetic number, because the mean of its divisors is an integer number (2954112).

Almost surely, 2^13785842 is an apocalyptic number.

13785842 is a deficient number, since it is larger than the sum of its proper divisors (9847054).

13785842 is an equidigital number, since it uses as much as digits as its factorization.

13785842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984712.

The product of its digits is 53760, while the sum is 38.

The square root of 13785842 is about 3712.9290324486. The cubic root of 13785842 is about 239.7789747526.

The spelling of 13785842 in words is "thirteen million, seven hundred eighty-five thousand, eight hundred forty-two".