542140 has 12 divisors (see below), whose sum is σ = 1138536. Its totient is φ = 216848.

The previous prime is 542131. The next prime is 542141. The reversal of 542140 is 41245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542141) by changing a digit.

542140 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 3 ways as a sum of consecutive naturals, for example, 13534 + ... + 13573.

It is an arithmetic number, because the mean of its divisors is an integer number (94878).

2⁵⁴²¹⁴⁰ is an apocalyptic number.

It is an amenable number.

542140 is an abundant number, since it is smaller than the sum of its proper divisors (596396).

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

542140 is a wasteful number, since it uses less digits than its factorization.

542140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27116 (or 27114 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 542140 is about 736.3015686524. The cubic root of 542140 is about 81.5399580742.

Adding to 542140 its reverse (41245), we get a palindrome (583385).

The spelling of 542140 in words is "five hundred forty-two thousand, one hundred forty".