870944256 has 480 divisors, whose sum is σ = 3241125888. Its totient is φ = 218972160.

The previous prime is 870944251. The next prime is 870944257. The reversal of 870944256 is 652449078.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870944251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12999135 + ... + 12999201.

Almost surely, 2^870944256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 870944256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1620562944).

870944256 is an abundant number, since it is smaller than the sum of its proper divisors (2370181632).

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

870944256 is a wasteful number, since it uses less digits than its factorization.

870944256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 870944256 is about 29511.7647049444. The cubic root of 870944256 is about 954.9855195487.

The spelling of 870944256 in words is "eight hundred seventy million, nine hundred forty-four thousand, two hundred fifty-six".