13819442 has 16 divisors (see below), whose sum is σ = 25513152. Its totient is φ = 5466960.

The previous prime is 13819433. The next prime is 13819447. The reversal of 13819442 is 24491831.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13819399 and 13819408.

It is not an unprimeable number, because it can be changed into a prime (13819447) 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, 37784 + ... + 38147.

It is an arithmetic number, because the mean of its divisors is an integer number (1594572).

Almost surely, 2^13819442 is an apocalyptic number.

13819442 is a deficient number, since it is larger than the sum of its proper divisors (11693710).

13819442 is a wasteful number, since it uses less digits than its factorization.

13819442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75953.

The product of its digits is 6912, while the sum is 32.

The square root of 13819442 is about 3717.4510084196. The cubic root of 13819442 is about 239.9736197856.

The spelling of 13819442 in words is "thirteen million, eight hundred nineteen thousand, four hundred forty-two".