542216 has 8 divisors (see below), whose sum is σ = 1016670. Its totient is φ = 271104.

The previous prime is 542207. The next prime is 542219. The reversal of 542216 is 612245.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 422500 + 119716 = 650^2 + 346^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 5 + 4⁹ + 2 + 2⁷ + 1 + 6⁷ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 542216.

It is not an unprimeable number, because it can be changed into a prime (542219) by changing a digit.

542216 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 33881 + ... + 33896.

2⁵⁴²²¹⁶ is an apocalyptic number.

It is an amenable number.

542216 is a deficient number, since it is larger than the sum of its proper divisors (474454).

542216 is a wasteful number, since it uses less digits than its factorization.

542216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67783 (or 67779 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 542216 is about 736.3531761322. The cubic root of 542216 is about 81.5437681278.

The spelling of 542216 in words is "five hundred forty-two thousand, two hundred sixteen".