542028 has 24 divisors (see below), whose sum is σ = 1339632. Its totient is φ = 169984.

The previous prime is 542027. The next prime is 542053. The reversal of 542028 is 820245.

It is a junction number, because it is equal to n+sod(n) for n = 541995 and 542013.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 542028.

It is not an unprimeable number, because it can be changed into a prime (542021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1125 + ... + 1532.

It is an arithmetic number, because the mean of its divisors is an integer number (55818).

2⁵⁴²⁰²⁸ is an apocalyptic number.

It is an amenable number.

542028 is an abundant number, since it is smaller than the sum of its proper divisors (797604).

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

542028 is a wasteful number, since it uses less digits than its factorization.

542028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2681 (or 2679 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 542028 is about 736.2255089305. The cubic root of 542028 is about 81.5343426094.

The spelling of 542028 in words is "five hundred forty-two thousand, twenty-eight".