542866 has 8 divisors (see below), whose sum is σ = 825984. Its totient is φ = 267540.

The previous prime is 542837. The next prime is 542873. The reversal of 542866 is 668245.

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

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, 1770 + ... + 2053.

It is an arithmetic number, because the mean of its divisors is an integer number (103248).

2⁵⁴²⁸⁶⁶ is an apocalyptic number.

542866 is a deficient number, since it is larger than the sum of its proper divisors (283118).

542866 is a wasteful number, since it uses less digits than its factorization.

542866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3896.

The product of its digits is 11520, while the sum is 31.

The square root of 542866 is about 736.7944082307. The cubic root of 542866 is about 81.5763395774.

The spelling of 542866 in words is "five hundred forty-two thousand, eight hundred sixty-six".