542445558 has 8 divisors (see below), whose sum is σ = 1084891128. Its totient is φ = 180815184.

The previous prime is 542445557. The next prime is 542445577. The reversal of 542445558 is 855544245.

542445558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

542445558 is an admirable number.

It is a super-3 number, since 3×542445558³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542445557) 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, 45203791 + ... + 45203802.

It is an arithmetic number, because the mean of its divisors is an integer number (135611391).

Almost surely, 2^542445558 is an apocalyptic number.

542445558 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

542445558 is a wasteful number, since it uses less digits than its factorization.

542445558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90407598.

The product of its digits is 640000, while the sum is 42.

The square root of 542445558 is about 23290.4606652595. The cubic root of 542445558 is about 815.5527423312.

The spelling of 542445558 in words is "five hundred forty-two million, four hundred forty-five thousand, five hundred fifty-eight".