438066 has 12 divisors (see below), whose sum is σ = 949182. Its totient is φ = 146016.

The previous prime is 438049. The next prime is 438091. The reversal of 438066 is 660834.

It can be written as a sum of positive squares in only one way, i.e., 221841 + 216225 = 471^2 + 465^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an unprimeable 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 5 ways as a sum of consecutive naturals, for example, 12151 + ... + 12186.

2⁴³⁸⁰⁶⁶ is an apocalyptic number.

438066 is an abundant number, since it is smaller than the sum of its proper divisors (511116).

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

438066 is a wasteful number, since it uses less digits than its factorization.

438066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24345 (or 24342 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 438066 is about 661.8655452582. The cubic root of 438066 is about 75.9474475106.

The spelling of 438066 in words is "four hundred thirty-eight thousand, sixty-six".