10981256 has 64 divisors (see below), whose sum is σ = 25099200. Its totient is φ = 4435200.

The previous prime is 10981247. The next prime is 10981277. The reversal of 10981256 is 65218901.

10981256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

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, 33011 + ... + 33341.

It is an arithmetic number, because the mean of its divisors is an integer number (392175).

Almost surely, 2^10981256 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 10981256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12549600).

10981256 is an abundant number, since it is smaller than the sum of its proper divisors (14117944).

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

10981256 is a wasteful number, since it uses less digits than its factorization.

10981256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 10981256 is about 3313.7978212317. The cubic root of 10981256 is about 222.2716151689.

The spelling of 10981256 in words is "ten million, nine hundred eighty-one thousand, two hundred fifty-six".