558340 has 12 divisors (see below), whose sum is σ = 1172556. Its totient is φ = 223328.

The previous prime is 558319. The next prime is 558343. The reversal of 558340 is 43855.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 391876 + 166464 = 626^2 + 408^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (558343) by changing a digit.

558340 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 (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13939 + ... + 13978.

It is an arithmetic number, because the mean of its divisors is an integer number (97713).

2⁵⁵⁸³⁴⁰ is an apocalyptic number.

It is an amenable number.

558340 is an abundant number, since it is smaller than the sum of its proper divisors (614216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

558340 is a wasteful number, since it uses less digits than its factorization.

558340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27926 (or 27924 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 558340 is about 747.2215200327. The cubic root of 558340 is about 82.3441809409.

It can be divided in two parts, 558 and 340, that added together give a palindrome (898).

The spelling of 558340 in words is "five hundred fifty-eight thousand, three hundred forty".