13818042 has 48 divisors (see below), whose sum is σ = 36234432. Its totient is φ = 3715200.

The previous prime is 13818023. The next prime is 13818043. The reversal of 13818042 is 24081831.

It is a junction number, because it is equal to n+sod(n) for n = 13817997 and 13818015.

It is not an unprimeable number, because it can be changed into a prime (13818043) 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 23 ways as a sum of consecutive naturals, for example, 1084 + ... + 5367.

It is an arithmetic number, because the mean of its divisors is an integer number (754884).

Almost surely, 2^13818042 is an apocalyptic number.

13818042 is an abundant number, since it is smaller than the sum of its proper divisors (22416390).

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

13818042 is a wasteful number, since it uses less digits than its factorization.

13818042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6483 (or 6480 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 13818042 is about 3717.2627025810. The cubic root of 13818042 is about 239.9655158788.

Adding to 13818042 its reverse (24081831), we get a palindrome (37899873).

It can be divided in two parts, 138 and 18042, that multiplied together give a triangular number (2489796 = T₂₂₃₁).

The spelling of 13818042 in words is "thirteen million, eight hundred eighteen thousand, forty-two".