605438 has 8 divisors (see below), whose sum is σ = 961632. Its totient is φ = 284896.

The previous prime is 605413. The next prime is 605443. The reversal of 605438 is 834506.

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

It is a Curzon number.

It is a plaindrome in base 9.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 605438.

It is an unprimeable number.

605438 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8870 + ... + 8937.

It is an arithmetic number, because the mean of its divisors is an integer number (120204).

2⁶⁰⁵⁴³⁸ is an apocalyptic number.

605438 is a deficient number, since it is larger than the sum of its proper divisors (356194).

605438 is a wasteful number, since it uses less digits than its factorization.

605438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17826.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 605438 is about 778.0989654279. The cubic root of 605438 is about 84.5973109522.

The spelling of 605438 in words is "six hundred five thousand, four hundred thirty-eight".