438512 has 10 divisors (see below), whose sum is σ = 849648. Its totient is φ = 219248.

The previous prime is 438499. The next prime is 438517. The reversal of 438512 is 215834.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438517) by changing a digit.

438512 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13688 + ... + 13719.

2⁴³⁸⁵¹² is an apocalyptic number.

It is an amenable number.

438512 is a deficient number, since it is larger than the sum of its proper divisors (411136).

438512 is a wasteful number, since it uses less digits than its factorization.

438512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27415 (or 27409 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 438512 is about 662.2023859818. The cubic root of 438512 is about 75.9732130898.

The spelling of 438512 in words is "four hundred thirty-eight thousand, five hundred twelve".