1838340036 has 120 divisors (see below), whose sum is σ = 5225109120. Its totient is φ = 560219328.

The previous prime is 1838340011. The next prime is 1838340089. The reversal of 1838340036 is 6300438381.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 448645 + ... + 452723.

It is an arithmetic number, because the mean of its divisors is an integer number (43542576).

Almost surely, 2^1838340036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1838340036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2612554560).

1838340036 is an abundant number, since it is smaller than the sum of its proper divisors (3386769084).

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

1838340036 is a wasteful number, since it uses less digits than its factorization.

1838340036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4215 (or 4204 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 1838340036 is about 42875.8677579825. The cubic root of 1838340036 is about 1225.0165286677.

The spelling of 1838340036 in words is "one billion, eight hundred thirty-eight million, three hundred forty thousand, thirty-six".