884840 has 32 divisors (see below), whose sum is σ = 2172960. Its totient is φ = 321600.

The previous prime is 884831. The next prime is 884857. The reversal of 884840 is 48488.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 884797 and 884806.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 884840.

It is an unprimeable number.

884840 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 (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566 + ... + 1445.

It is an arithmetic number, because the mean of its divisors is an integer number (67905).

2⁸⁸⁴⁸⁴⁰ is an apocalyptic number.

It is an amenable number.

884840 is an abundant number, since it is smaller than the sum of its proper divisors (1288120).

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

884840 is a wasteful number, since it uses less digits than its factorization.

884840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033 (or 2029 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 884840 is about 940.6593432269. The cubic root of 884840 is about 96.0037614267.

It can be divided in two parts, 8848 and 40, that added together give a palindrome (8888).

The spelling of 884840 in words is "eight hundred eighty-four thousand, eight hundred forty".