2019027840 has 256 divisors, whose sum is σ = 6700518720. Its totient is φ = 516685824.

The previous prime is 2019027767. The next prime is 2019027851. The reversal of 2019027840 is 487209102.

It is a happy number.

2019027840 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6890734 + ... + 6891026.

Almost surely, 2^2019027840 is an apocalyptic number.

2019027840 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 2019027840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3350259360).

2019027840 is an abundant number, since it is smaller than the sum of its proper divisors (4681490880).

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

2019027840 is a wasteful number, since it uses less digits than its factorization.

2019027840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 2019027840 is about 44933.5936688799. The cubic root of 2019027840 is about 1263.9040412118.

The spelling of 2019027840 in words is "two billion, nineteen million, twenty-seven thousand, eight hundred forty".