438380 has 24 divisors (see below), whose sum is σ = 961632. Its totient is φ = 167552.

The previous prime is 438377. The next prime is 438391. The reversal of 438380 is 83834.

438380 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17 + ... + 936.

It is an arithmetic number, because the mean of its divisors is an integer number (40068).

2⁴³⁸³⁸⁰ 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 438380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480816).

438380 is an abundant number, since it is smaller than the sum of its proper divisors (523252).

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

438380 is a wasteful number, since it uses less digits than its factorization.

438380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 438380 is about 662.1027110653. The cubic root of 438380 is about 75.9655892235.

It can be divided in two parts, 438 and 380, that added together give a palindrome (818).

The spelling of 438380 in words is "four hundred thirty-eight thousand, three hundred eighty".