542768 has 10 divisors (see below), whose sum is σ = 1051644. Its totient is φ = 271376.

The previous prime is 542761. The next prime is 542771. The reversal of 542768 is 867245.

It is an Ulam number.

It is a d-powerful number, because it can be written as 5² + 4⁴ + 7³ + 2¹⁸ + 6⁷ + 8² .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 542768.

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 (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16946 + ... + 16977.

2⁵⁴²⁷⁶⁸ is an apocalyptic number.

It is an amenable number.

542768 is a deficient number, since it is larger than the sum of its proper divisors (508876).

542768 is a wasteful number, since it uses less digits than its factorization.

542768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33931 (or 33925 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 542768 is about 736.7279009241. The cubic root of 542768 is about 81.5714304701.

The spelling of 542768 in words is "five hundred forty-two thousand, seven hundred sixty-eight".