888440 has 64 divisors (see below), whose sum is σ = 2419200. Its totient is φ = 286848.

The previous prime is 888431. The next prime is 888443. The reversal of 888440 is 44888.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 888397 and 888406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (888443) by changing a digit.

888440 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 15 ways as a sum of consecutive naturals, for example, 5237 + ... + 5403.

It is an arithmetic number, because the mean of its divisors is an integer number (37800).

2⁸⁸⁸⁴⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 888440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1209600).

888440 is an abundant number, since it is smaller than the sum of its proper divisors (1530760).

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

888440 is a wasteful number, since it uses less digits than its factorization.

888440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 200 counting only the distinct ones).

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

The square root of 888440 is about 942.5709522365. The cubic root of 888440 is about 96.1337833834.

The spelling of 888440 in words is "eight hundred eighty-eight thousand, four hundred forty".