542618 has 8 divisors (see below), whose sum is σ = 822612. Its totient is φ = 268416.

The previous prime is 542603. The next prime is 542683. The reversal of 542618 is 816245.

It can be written as a sum of positive squares in 2 ways, for example, as 537289 + 5329 = 733^2 + 73^2 .

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

It is a d-powerful number, because it can be written as 5² + 4⁴ + 6⁷ + 2⁸ + 1 + 8⁶ .

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, 1205 + ... + 1592.

2⁵⁴²⁶¹⁸ is an apocalyptic number.

542618 is a deficient number, since it is larger than the sum of its proper divisors (279994).

542618 is a wasteful number, since it uses less digits than its factorization.

542618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2896.

The product of its digits is 1920, while the sum is 26.

The square root of 542618 is about 736.6260923970. The cubic root of 542618 is about 81.5639153858.

The spelling of 542618 in words is "five hundred forty-two thousand, six hundred eighteen".