2878281000 has 512 divisors, whose sum is σ = 11594419200. Its totient is φ = 646963200.

The previous prime is 2878280959. The next prime is 2878281013. The reversal of 2878281000 is 1828782.

It is a super-2 number, since 2×2878281000² = 16569003029922000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 18332922 + ... + 18333078.

It is an arithmetic number, because the mean of its divisors is an integer number (22645350).

Almost surely, 2^2878281000 is an apocalyptic number.

2878281000 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 2878281000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5797209600).

2878281000 is an abundant number, since it is smaller than the sum of its proper divisors (8716138200).

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

2878281000 is a wasteful number, since it uses less digits than its factorization.

2878281000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 2878281000 is about 53649.6132325295. The cubic root of 2878281000 is about 1422.4741960328.

The spelling of 2878281000 in words is "two billion, eight hundred seventy-eight million, two hundred eighty-one thousand".