881920 has 72 divisors (see below), whose sum is σ = 2317896. Its totient is φ = 319488.

The previous prime is 881917. The next prime is 881939. The reversal of 881920 is 29188.

It can be written as a sum of positive squares in 4 ways, for example, as 50176 + 831744 = 224^2 + 912^2 .

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16614 + ... + 16666.

It is an arithmetic number, because the mean of its divisors is an integer number (32193).

2⁸⁸¹⁹²⁰ is an apocalyptic number.

881920 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 881920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1158948).

881920 is an abundant number, since it is smaller than the sum of its proper divisors (1435976).

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

881920 is a wasteful number, since it uses less digits than its factorization.

881920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 881920 is about 939.1059578131. The cubic root of 881920 is about 95.8980398962.

The spelling of 881920 in words is "eight hundred eighty-one thousand, nine hundred twenty".