13805442 has 24 divisors (see below), whose sum is σ = 34185216. Its totient is φ = 3944376.

The previous prime is 13805437. The next prime is 13805443. The reversal of 13805442 is 24450831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13805443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54658 + ... + 54909.

It is an arithmetic number, because the mean of its divisors is an integer number (1424384).

Almost surely, 2^13805442 is an apocalyptic number.

13805442 is an abundant number, since it is smaller than the sum of its proper divisors (20379774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13805442 is a wasteful number, since it uses less digits than its factorization.

13805442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109582 (or 109579 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 13805442 is about 3715.5675205815. The cubic root of 13805442 is about 239.8925560730.

The spelling of 13805442 in words is "thirteen million, eight hundred five thousand, four hundred forty-two".