42068641 has 8 divisors (see below), whose sum is σ = 44452800. Its totient is φ = 39701520.

The previous prime is 42068629. The next prime is 42068651. The reversal of 42068641 is 14686024.

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 42068641 - 2¹¹ = 42066593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42068651) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 996 + ... + 9226.

It is an arithmetic number, because the mean of its divisors is an integer number (5556600).

Almost surely, 2^42068641 is an apocalyptic number.

It is an amenable number.

42068641 is a deficient number, since it is larger than the sum of its proper divisors (2384159).

42068641 is a wasteful number, since it uses less digits than its factorization.

42068641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8519.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 42068641 is about 6486.0343045655. The cubic root of 42068641 is about 347.7919248711.

The spelling of 42068641 in words is "forty-two million, sixty-eight thousand, six hundred forty-one".