42424666 has 8 divisors (see below), whose sum is σ = 63700704. Its totient is φ = 21191100.

The previous prime is 42424661. The next prime is 42424667. The reversal of 42424666 is 66642424.

42424666 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 not an unprimeable number, because it can be changed into a prime (42424661) 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 3 ways as a sum of consecutive naturals, for example, 7990 + ... + 12193.

It is an arithmetic number, because the mean of its divisors is an integer number (7962588).

Almost surely, 2^42424666 is an apocalyptic number.

42424666 is a deficient number, since it is larger than the sum of its proper divisors (21276038).

42424666 is a wasteful number, since it uses less digits than its factorization.

42424666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21236.

The product of its digits is 55296, while the sum is 34.

The square root of 42424666 is about 6513.4219884789. The cubic root of 42424666 is about 348.7702858581.

The spelling of 42424666 in words is "forty-two million, four hundred twenty-four thousand, six hundred sixty-six".