542660 has 24 divisors (see below), whose sum is σ = 1167936. Its totient is φ = 211680.

The previous prime is 542603. The next prime is 542683. The reversal of 542660 is 66245.

It is an unprimeable number.

542660 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 7 ways as a sum of consecutive naturals, for example, 545 + ... + 1175.

It is an arithmetic number, because the mean of its divisors is an integer number (48664).

2⁵⁴²⁶⁶⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (583968).

542660 is an abundant number, since it is smaller than the sum of its proper divisors (625276).

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

542660 is a wasteful number, since it uses less digits than its factorization.

542660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 542660 is about 736.6546002028. The cubic root of 542660 is about 81.5660197490.

The spelling of 542660 in words is "five hundred forty-two thousand, six hundred sixty".