42546643 has 8 divisors (see below), whose sum is σ = 45879120. Its totient is φ = 39323520.

The previous prime is 42546641. The next prime is 42546661. The reversal of 42546643 is 34664524.

42546643 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.

It is a cyclic number.

It is not a de Polignac number, because 42546643 - 2¹ = 42546641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42546599 and 42546608.

It is not an unprimeable number, because it can be changed into a prime (42546641) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 26530 + ... + 28087.

It is an arithmetic number, because the mean of its divisors is an integer number (5734890).

Almost surely, 2^42546643 is an apocalyptic number.

42546643 is a deficient number, since it is larger than the sum of its proper divisors (3332477).

42546643 is a wasteful number, since it uses less digits than its factorization.

42546643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54677.

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

The square root of 42546643 is about 6522.7787790174. The cubic root of 42546643 is about 349.1042208913.

The spelling of 42546643 in words is "forty-two million, five hundred forty-six thousand, six hundred forty-three".