538618 has 8 divisors (see below), whose sum is σ = 826848. Its totient is φ = 263004.

The previous prime is 538597. The next prime is 538621. The reversal of 538618 is 816835.

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

It is a self number, because there is not a number n which added to its sum of digits gives 538618.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3046 + ... + 3217.

It is an arithmetic number, because the mean of its divisors is an integer number (103356).

2⁵³⁸⁶¹⁸ is an apocalyptic number.

538618 is a deficient number, since it is larger than the sum of its proper divisors (288230).

538618 is a wasteful number, since it uses less digits than its factorization.

538618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6308.

The product of its digits is 5760, while the sum is 31.

The square root of 538618 is about 733.9059885299. The cubic root of 538618 is about 81.3630001662.

It can be divided in two parts, 538 and 618, that added together give a square (1156 = 34²).

The spelling of 538618 in words is "five hundred thirty-eight thousand, six hundred eighteen".