542766 has 16 divisors (see below), whose sum is σ = 1240704. Its totient is φ = 155064.

The previous prime is 542761. The next prime is 542771. The reversal of 542766 is 667245.

It is an interprime number because it is at equal distance from previous prime (542761) and next prime (542771).

It is an Ulam number.

It is a d-powerful number, because it can be written as 5³ + 4⁹ + 7³ + 2 + 6³ + 6⁷ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 542766.

It is not an unprimeable number, because it can be changed into a prime (542761) 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, 6420 + ... + 6503.

It is an arithmetic number, because the mean of its divisors is an integer number (77544).

2⁵⁴²⁷⁶⁶ is an apocalyptic number.

542766 is an abundant number, since it is smaller than the sum of its proper divisors (697938).

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

542766 is a wasteful number, since it uses less digits than its factorization.

542766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12935.

The product of its digits is 10080, while the sum is 30.

The square root of 542766 is about 736.7265435696. The cubic root of 542766 is about 81.5713302781.

The spelling of 542766 in words is "five hundred forty-two thousand, seven hundred sixty-six".