884440 has 16 divisors (see below), whose sum is σ = 1990080. Its totient is φ = 353760.

The previous prime is 884437. The next prime is 884441. The reversal of 884440 is 44488.

It is a happy number.

It is a super-2 number, since 2×884440² = 1564468227200, which contains 22 as substring.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 884399 and 884408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (884441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11016 + ... + 11095.

It is an arithmetic number, because the mean of its divisors is an integer number (124380).

2⁸⁸⁴⁴⁴⁰ is an apocalyptic number.

It is an amenable number.

884440 is an abundant number, since it is smaller than the sum of its proper divisors (1105640).

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

884440 is a wasteful number, since it uses less digits than its factorization.

884440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22122 (or 22118 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 884440 is about 940.4467023707. The cubic root of 884440 is about 95.9892927873.

It can be divided in two parts, 8 and 84440, that added together give a palindrome (84448).

The spelling of 884440 in words is "eight hundred eighty-four thousand, four hundred forty".