538340 has 24 divisors (see below), whose sum is σ = 1233792. Its totient is φ = 195680.

The previous prime is 538333. The next prime is 538357. The reversal of 538340 is 43835.

It is an unprimeable number.

538340 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 in 7 ways as a sum of consecutive naturals, for example, 1004 + ... + 1443.

It is an arithmetic number, because the mean of its divisors is an integer number (51408).

2⁵³⁸³⁴⁰ is an apocalyptic number.

It is an amenable number.

538340 is an abundant number, since it is smaller than the sum of its proper divisors (695452).

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

538340 is a wasteful number, since it uses less digits than its factorization.

538340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467 (or 2465 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 538340 is about 733.7165665296. The cubic root of 538340 is about 81.3489996398.

It can be divided in two parts, 538 and 340, that added together give a palindrome (878).

The spelling of 538340 in words is "five hundred thirty-eight thousand, three hundred forty".