438828 has 48 divisors (see below), whose sum is σ = 1152480. Its totient is φ = 129024.

The previous prime is 438827. The next prime is 438829. The reversal of 438828 is 828834.

It is an interprime number because it is at equal distance from previous prime (438827) and next prime (438829).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 438828.

It is not an unprimeable number, because it can be changed into a prime (438827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4476 + ... + 4572.

It is an arithmetic number, because the mean of its divisors is an integer number (24010).

2⁴³⁸⁸²⁸ 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 438828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (576240).

438828 is an abundant number, since it is smaller than the sum of its proper divisors (713652).

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

438828 is a wasteful number, since it uses less digits than its factorization.

438828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 144 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 438828 is about 662.4409407638. The cubic root of 438828 is about 75.9914579504.

The spelling of 438828 in words is "four hundred thirty-eight thousand, eight hundred twenty-eight".