438843834 has 96 divisors (see below), whose sum is σ = 1155772800. Its totient is φ = 118500480.

The previous prime is 438843833. The next prime is 438843851. The reversal of 438843834 is 438348834.

It is a self number, because there is not a number n which added to its sum of digits gives 438843834.

It is not an unprimeable number, because it can be changed into a prime (438843833) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71707 + ... + 77585.

It is an arithmetic number, because the mean of its divisors is an integer number (12039300).

Almost surely, 2^438843834 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 438843834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (577886400).

438843834 is an abundant number, since it is smaller than the sum of its proper divisors (716928966).

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

438843834 is a wasteful number, since it uses less digits than its factorization.

438843834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5940 (or 5937 counting only the distinct ones).

The product of its digits is 884736, while the sum is 45.

The square root of 438843834 is about 20948.5998100112. The cubic root of 438843834 is about 759.9237192600.

The spelling of 438843834 in words is "four hundred thirty-eight million, eight hundred forty-three thousand, eight hundred thirty-four".