543646042 has 8 divisors (see below), whose sum is σ = 815786676. Its totient is φ = 271717152.

The previous prime is 543646021. The next prime is 543646109. The reversal of 543646042 is 240646345.

It can be written as a sum of positive squares in 2 ways, for example, as 529046001 + 14600041 = 23001^2 + 3821^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 543645989 and 543646007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46353 + ... + 56884.

Almost surely, 2^543646042 is an apocalyptic number.

543646042 is a deficient number, since it is larger than the sum of its proper divisors (272140634).

543646042 is a wasteful number, since it uses less digits than its factorization.

543646042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105872.

The product of its (nonzero) digits is 69120, while the sum is 34.

The square root of 543646042 is about 23316.2184326704. The cubic root of 543646042 is about 816.1539311760.

It can be divided in two parts, 54364 and 6042, that added together give a palindrome (60406).

The spelling of 543646042 in words is "five hundred forty-three million, six hundred forty-six thousand, forty-two".