438116 has 12 divisors (see below), whose sum is σ = 876288. Its totient is φ = 187752.

The previous prime is 438091. The next prime is 438131. The reversal of 438116 is 611834.

438116 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 438091 and 438100.

It is an unprimeable number.

438116 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 7796 + ... + 7851.

It is an arithmetic number, because the mean of its divisors is an integer number (73024).

2⁴³⁸¹¹⁶ is an apocalyptic number.

It is an amenable number.

438116 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

438116 is a wasteful number, since it uses less digits than its factorization.

438116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15658 (or 15656 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 438116 is about 661.9033162026. The cubic root of 438116 is about 75.9503368985.

The spelling of 438116 in words is "four hundred thirty-eight thousand, one hundred sixteen".