885840 has 40 divisors (see below), whose sum is σ = 2746848. Its totient is φ = 236160.

The previous prime is 885839. The next prime is 885869. The reversal of 885840 is 48588.

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

It is an Ulam number.

It is a plaindrome in base 11.

It is a zygodrome in base 11.

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 885840.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1606 + ... + 2085.

2⁸⁸⁵⁸⁴⁰ is an apocalyptic number.

885840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

885840 is an abundant number, since it is smaller than the sum of its proper divisors (1861008).

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

885840 is a wasteful number, since it uses less digits than its factorization.

885840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707 (or 3701 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 885840 is about 941.1907351860. The cubic root of 885840 is about 96.0399139582.

The spelling of 885840 in words is "eight hundred eighty-five thousand, eight hundred forty".