2018189880 has 384 divisors, whose sum is σ = 8031628800. Its totient is φ = 429235200.

The previous prime is 2018189791. The next prime is 2018189897. The reversal of 2018189880 is 889818102.

2018189880 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 2920335 + ... + 2921025.

It is an arithmetic number, because the mean of its divisors is an integer number (20915700).

Almost surely, 2^2018189880 is an apocalyptic number.

2018189880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2018189880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4015814400).

2018189880 is an abundant number, since it is smaller than the sum of its proper divisors (6013438920).

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

2018189880 is a wasteful number, since it uses less digits than its factorization.

2018189880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 45.

The square root of 2018189880 is about 44924.2682745084. The cubic root of 2018189880 is about 1263.7291637182.

The spelling of 2018189880 in words is "two billion, eighteen million, one hundred eighty-nine thousand, eight hundred eighty".