542044066 has 4 divisors (see below), whose sum is σ = 813066102. Its totient is φ = 271022032.

The previous prime is 542043947. The next prime is 542044081. The reversal of 542044066 is 660440245.

542044066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 660440245 = 5 ⋅132088049.

It can be written as a sum of positive squares in only one way, i.e., 322382025 + 219662041 = 17955^2 + 14821^2 .

It is a super-3 number, since 3×542044066³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135511015 + ... + 135511018.

Almost surely, 2^542044066 is an apocalyptic number.

542044066 is a deficient number, since it is larger than the sum of its proper divisors (271022036).

542044066 is a wasteful number, since it uses less digits than its factorization.

542044066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271022035.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 542044066 is about 23281.8398327967. The cubic root of 542044066 is about 815.3514817533.

The spelling of 542044066 in words is "five hundred forty-two million, forty-four thousand, sixty-six".