438916 has 12 divisors (see below), whose sum is σ = 773388. Its totient is φ = 217952.

The previous prime is 438913. The next prime is 438937. The reversal of 438916 is 619834.

438916 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 254016 + 184900 = 504^2 + 430^2 .

It is not an unprimeable number, because it can be changed into a prime (438913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510 + ... + 1066.

It is an arithmetic number, because the mean of its divisors is an integer number (64449).

2⁴³⁸⁹¹⁶ is an apocalyptic number.

It is an amenable number.

438916 is a deficient number, since it is larger than the sum of its proper divisors (334472).

438916 is a wasteful number, since it uses less digits than its factorization.

438916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758 (or 756 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 438916 is about 662.5073584497. The cubic root of 438916 is about 75.9965372384.

The spelling of 438916 in words is "four hundred thirty-eight thousand, nine hundred sixteen".