885438 has 32 divisors (see below), whose sum is σ = 2073600. Its totient is φ = 279288.

The previous prime is 885427. The next prime is 885449. The reversal of 885438 is 834588.

It is an interprime number because it is at equal distance from previous prime (885427) and next prime (885449).

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 885438.

It is an unprimeable 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, 595 + ... + 1457.

It is an arithmetic number, because the mean of its divisors is an integer number (64800).

2⁸⁸⁵⁴³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 885438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1036800).

885438 is an abundant number, since it is smaller than the sum of its proper divisors (1188162).

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

885438 is a wasteful number, since it uses less digits than its factorization.

885438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893 (or 887 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 885438 is about 940.9771516886. The cubic root of 885438 is about 96.0253839125.

The spelling of 885438 in words is "eight hundred eighty-five thousand, four hundred thirty-eight".