2887885440 has 256 divisors, whose sum is σ = 11158473600. Its totient is φ = 700047360.

The previous prime is 2887885433. The next prime is 2887885447. The reversal of 2887885440 is 445887882.

2887885440 is a `hidden beast` number, since 28 + 8 + 78 + 8 + 544 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2887885433) and next prime (2887885447).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2887885447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182484 + ... + 197676.

Almost surely, 2^2887885440 is an apocalyptic number.

2887885440 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 2887885440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5579236800).

2887885440 is an abundant number, since it is smaller than the sum of its proper divisors (8270588160).

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

2887885440 is a wasteful number, since it uses less digits than its factorization.

2887885440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15232 (or 15214 counting only the distinct ones).

The product of its (nonzero) digits is 4587520, while the sum is 54.

The square root of 2887885440 is about 53739.0494891750. The cubic root of 2887885440 is about 1424.0546416772.

The spelling of 2887885440 in words is "two billion, eight hundred eighty-seven million, eight hundred eighty-five thousand, four hundred forty".