881520 has 40 divisors (see below), whose sum is σ = 2733456. Its totient is φ = 235008.

The previous prime is 881509. The next prime is 881527. The reversal of 881520 is 25188.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 881520.

It is not an unprimeable number, because it can be changed into a prime (881527) by changing a digit.

881520 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1597 + ... + 2076.

2⁸⁸¹⁵²⁰ is an apocalyptic number.

881520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

881520 is an abundant number, since it is smaller than the sum of its proper divisors (1851936).

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

881520 is a wasteful number, since it uses less digits than its factorization.

881520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3689 (or 3683 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 881520 is about 938.8929651457. The cubic root of 881520 is about 95.8835393305.

The spelling of 881520 in words is "eight hundred eighty-one thousand, five hundred twenty".