542780068 has 12 divisors (see below), whose sum is σ = 999858160. Its totient is φ = 257106312.

The previous prime is 542780041. The next prime is 542780071. The reversal of 542780068 is 860087245.

It is a super-2 number, since 2×542780068² = 589220404436169248, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 542780068.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3570846 + ... + 3570997.

Almost surely, 2^542780068 is an apocalyptic number.

It is an amenable number.

542780068 is a deficient number, since it is larger than the sum of its proper divisors (457078092).

542780068 is a wasteful number, since it uses less digits than its factorization.

542780068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7141866 (or 7141864 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 542780068 is about 23297.6408247702. The cubic root of 542780068 is about 815.7203502351.

The spelling of 542780068 in words is "five hundred forty-two million, seven hundred eighty thousand, sixty-eight".