984438 has 48 divisors (see below), whose sum is σ = 2629536. Its totient is φ = 259200.

The previous prime is 984437. The next prime is 984457. The reversal of 984438 is 834489.

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 984438.

It is not an unprimeable number, because it can be changed into a prime (984437) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1338 + ... + 1938.

It is an arithmetic number, because the mean of its divisors is an integer number (54782).

2⁹⁸⁴⁴³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 984438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1314768).

984438 is an abundant number, since it is smaller than the sum of its proper divisors (1645098).

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

984438 is a wasteful number, since it uses less digits than its factorization.

984438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 626 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 984438 is about 992.1884901570. The cubic root of 984438 is about 99.4785523160.

The spelling of 984438 in words is "nine hundred eighty-four thousand, four hundred thirty-eight".