438670 has 8 divisors (see below), whose sum is σ = 789624. Its totient is φ = 175464.

The previous prime is 438667. The next prime is 438671. The reversal of 438670 is 76834.

438670 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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 (438671) 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, 21924 + ... + 21943.

It is an arithmetic number, because the mean of its divisors is an integer number (98703).

2⁴³⁸⁶⁷⁰ is an apocalyptic number.

438670 is a deficient number, since it is larger than the sum of its proper divisors (350954).

438670 is a wasteful number, since it uses less digits than its factorization.

438670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43874.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 438670 is about 662.3216741131. The cubic root of 438670 is about 75.9823366153.

The spelling of 438670 in words is "four hundred thirty-eight thousand, six hundred seventy".