542782 has 8 divisors (see below), whose sum is σ = 818496. Its totient is φ = 269952.

The previous prime is 542771. The next prime is 542783. The reversal of 542782 is 287245.

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

It is a super-2 number, since 2×542782² = 589224599048, which contains 22 as substring.

It is a d-powerful number, because it can be written as 5 + 4⁷ + 7² + 2¹¹ + 8 + 2¹⁹ .

It is a self number, because there is not a number n which added to its sum of digits gives 542782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163 + ... + 1054.

It is an arithmetic number, because the mean of its divisors is an integer number (102312).

2⁵⁴²⁷⁸² is an apocalyptic number.

542782 is a deficient number, since it is larger than the sum of its proper divisors (275714).

542782 is a wasteful number, since it uses less digits than its factorization.

542782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442.

The product of its digits is 4480, while the sum is 28.

The square root of 542782 is about 736.7374023355. The cubic root of 542782 is about 81.5721318073.

The spelling of 542782 in words is "five hundred forty-two thousand, seven hundred eighty-two".