881840 has 40 divisors (see below), whose sum is σ = 2092128. Its totient is φ = 345600.

The previous prime is 881833. The next prime is 881849. The reversal of 881840 is 48188.

881840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 881840.

It is not an unprimeable number, because it can be changed into a prime (881849) by changing a digit.

881840 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5765 + ... + 5915.

2⁸⁸¹⁸⁴⁰ is an apocalyptic number.

881840 is a gapful number since it is divisible by the number (80) 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 881840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1046064).

881840 is an abundant number, since it is smaller than the sum of its proper divisors (1210288).

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

881840 is a wasteful number, since it uses less digits than its factorization.

881840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 881840 is about 939.0633631444. The cubic root of 881840 is about 95.8951401339.

The spelling of 881840 in words is "eight hundred eighty-one thousand, eight hundred forty".