542238 has 8 divisors (see below), whose sum is σ = 1084488. Its totient is φ = 180744.

The previous prime is 542237. The next prime is 542251. The reversal of 542238 is 832245.

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

542238 is an admirable number.

It is a d-powerful number, because it can be written as 5⁵ + 4³ + 2¹³ + 2¹⁹ + 3⁸ + 8 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45181 + ... + 45192.

It is an arithmetic number, because the mean of its divisors is an integer number (135561).

2⁵⁴²²³⁸ is an apocalyptic number.

542238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

542238 is a wasteful number, since it uses less digits than its factorization.

542238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90378.

The product of its digits is 1920, while the sum is 24.

The square root of 542238 is about 736.3681144645. The cubic root of 542238 is about 81.5448709716.

It can be divided in two parts, 5422 and 38, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 542238 in words is "five hundred forty-two thousand, two hundred thirty-eight".