881645256 has 64 divisors (see below), whose sum is σ = 2478571200. Its totient is φ = 290335104.

The previous prime is 881645243. The next prime is 881645267. The reversal of 881645256 is 652546188.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6661 + ... + 42516.

It is an arithmetic number, because the mean of its divisors is an integer number (38727675).

Almost surely, 2^881645256 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 881645256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1239285600).

881645256 is an abundant number, since it is smaller than the sum of its proper divisors (1596925944).

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

881645256 is a wasteful number, since it uses less digits than its factorization.

881645256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49275 (or 49265 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 881645256 is about 29692.5117832763. The cubic root of 881645256 is about 958.8808050933.

The spelling of 881645256 in words is "eight hundred eighty-one million, six hundred forty-five thousand, two hundred fifty-six".