13920684242 has 8 divisors (see below), whose sum is σ = 20883467136. Its totient is φ = 6959528532.

The previous prime is 13920684227. The next prime is 13920684319. The reversal of 13920684242 is 24248602931.

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

It is a super-2 number, since 2×13920684242² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13920684242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385178 + ... + 419765.

It is an arithmetic number, because the mean of its divisors is an integer number (2610433392).

Almost surely, 2^13920684242 is an apocalyptic number.

13920684242 is a deficient number, since it is larger than the sum of its proper divisors (6962782894).

13920684242 is an equidigital number, since it uses as much as digits as its factorization.

13920684242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813592.

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 13920684242 in words is "thirteen billion, nine hundred twenty million, six hundred eighty-four thousand, two hundred forty-two".