538366 has 4 divisors (see below), whose sum is σ = 807552. Its totient is φ = 269182.

The previous prime is 538357. The next prime is 538367. The reversal of 538366 is 663835.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134590 + ... + 134593.

It is an arithmetic number, because the mean of its divisors is an integer number (201888).

2⁵³⁸³⁶⁶ is an apocalyptic number.

538366 is a deficient number, since it is larger than the sum of its proper divisors (269186).

538366 is a wasteful number, since it uses less digits than its factorization.

538366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269185.

The product of its digits is 12960, while the sum is 31.

The square root of 538366 is about 733.7342843291. The cubic root of 538366 is about 81.3503092458.

The spelling of 538366 in words is "five hundred thirty-eight thousand, three hundred sixty-six".