2389888020 has 192 divisors, whose sum is σ = 7649832960. Its totient is φ = 552614400.

The previous prime is 2389888009. The next prime is 2389888063. The reversal of 2389888020 is 208889832.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1940805 + ... + 1942035.

It is an arithmetic number, because the mean of its divisors is an integer number (39842880).

Almost surely, 2^2389888020 is an apocalyptic number.

2389888020 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 2389888020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3824916480).

2389888020 is an abundant number, since it is smaller than the sum of its proper divisors (5259944940).

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

2389888020 is a wasteful number, since it uses less digits than its factorization.

2389888020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406 (or 1404 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 2389888020 is about 48886.4809533270. The cubic root of 2389888020 is about 1336.9828940545.

The spelling of 2389888020 in words is "two billion, three hundred eighty-nine million, eight hundred eighty-eight thousand, twenty".