2868894140 has 72 divisors (see below), whose sum is σ = 7031580192. Its totient is φ = 980353920.

The previous prime is 2868894131. The next prime is 2868894157. The reversal of 2868894140 is 414988682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 300074 + ... + 309486.

It is an arithmetic number, because the mean of its divisors is an integer number (97660836).

Almost surely, 2^2868894140 is an apocalyptic number.

2868894140 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 2868894140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3515790096).

2868894140 is an abundant number, since it is smaller than the sum of its proper divisors (4162686052).

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

2868894140 is a wasteful number, since it uses less digits than its factorization.

2868894140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9747 (or 9738 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 50.

The square root of 2868894140 is about 53562.0587729785. The cubic root of 2868894140 is about 1420.9261530698.

The spelling of 2868894140 in words is "two billion, eight hundred sixty-eight million, eight hundred ninety-four thousand, one hundred forty".