1838385822220 has 24 divisors (see below), whose sum is σ = 3865382337600. Its totient is φ = 734445355392.

The previous prime is 1838385822209. The next prime is 1838385822227. The reversal of 1838385822220 is 222285838381.

It is not an unprimeable number, because it can be changed into a prime (1838385822227) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 56794260 + ... + 56826619.

It is an arithmetic number, because the mean of its divisors is an integer number (161057597400).

Almost surely, 2^{1838385822220} is an apocalyptic number.

1838385822220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1838385822220 is an abundant number, since it is smaller than the sum of its proper divisors (2026996515380).

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

1838385822220 is a wasteful number, since it uses less digits than its factorization.

1838385822220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113621697 (or 113621695 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 52.

The spelling of 1838385822220 in words is "one trillion, eight hundred thirty-eight billion, three hundred eighty-five million, eight hundred twenty-two thousand, two hundred twenty".