438212 has 12 divisors (see below), whose sum is σ = 778176. Its totient is φ = 215880.

The previous prime is 438211. The next prime is 438223. The reversal of 438212 is 212834.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438211) by changing a digit.

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, 488 + ... + 1055.

It is an arithmetic number, because the mean of its divisors is an integer number (64848).

2⁴³⁸²¹² is an apocalyptic number.

It is an amenable number.

438212 is a deficient number, since it is larger than the sum of its proper divisors (339964).

438212 is a wasteful number, since it uses less digits than its factorization.

438212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618 (or 1616 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 438212 is about 661.9758303745. The cubic root of 438212 is about 75.9558839073.

The spelling of 438212 in words is "four hundred thirty-eight thousand, two hundred twelve".