438007 has 4 divisors (see below), whose sum is σ = 461080. Its totient is φ = 414936.

The previous prime is 438001. The next prime is 438017. The reversal of 438007 is 700834.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 438007 - 2¹⁵ = 405239 is a prime.

It is a Duffinian number.

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 (438001) 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, 11508 + ... + 11545.

It is an arithmetic number, because the mean of its divisors is an integer number (115270).

2⁴³⁸⁰⁰⁷ is an apocalyptic number.

438007 is a deficient number, since it is larger than the sum of its proper divisors (23073).

438007 is a wasteful number, since it uses less digits than its factorization.

438007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23072.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 438007 is about 661.8209727713. The cubic root of 438007 is about 75.9440377499.

The spelling of 438007 in words is "four hundred thirty-eight thousand, seven".