2019887140 has 48 divisors (see below), whose sum is σ = 4534185600. Its totient is φ = 753969920.

The previous prime is 2019887069. The next prime is 2019887161. The reversal of 2019887140 is 417889102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2019887093 and 2019887102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34690 + ... + 72409.

It is an arithmetic number, because the mean of its divisors is an integer number (94462200).

Almost surely, 2^2019887140 is an apocalyptic number.

2019887140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2019887140 is an abundant number, since it is smaller than the sum of its proper divisors (2514298460).

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

2019887140 is a wasteful number, since it uses less digits than its factorization.

2019887140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107172 (or 107170 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 2019887140 is about 44943.1545399297. The cubic root of 2019887140 is about 1264.0833219989.

The spelling of 2019887140 in words is "two billion, nineteen million, eight hundred eighty-seven thousand, one hundred forty".