1838404040002 has 8 divisors (see below), whose sum is σ = 2757724588800. Its totient is φ = 919162510404.

The previous prime is 1838404039957. The next prime is 1838404040009. The reversal of 1838404040002 is 2000404048381.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1838404040002.

It is not an unprimeable number, because it can be changed into a prime (1838404040009) by changing a digit.

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, 19696602 + ... + 19789717.

It is an arithmetic number, because the mean of its divisors is an integer number (344715573600).

Almost surely, 2^{1838404040002} is an apocalyptic number.

1838404040002 is a deficient number, since it is larger than the sum of its proper divisors (919320548798).

1838404040002 is a wasteful number, since it uses less digits than its factorization.

1838404040002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39509600.

The product of its (nonzero) digits is 24576, while the sum is 34.

Adding to 1838404040002 its reverse (2000404048381), we get a palindrome (3838808088383).

The spelling of 1838404040002 in words is "one trillion, eight hundred thirty-eight billion, four hundred four million, forty thousand, two".