42506068 has 24 divisors (see below), whose sum is σ = 81313344. Its totient is φ = 19281600.

The previous prime is 42506063. The next prime is 42506077. The reversal of 42506068 is 86060524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42506063) 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, 40713 + ... + 41743.

It is an arithmetic number, because the mean of its divisors is an integer number (3388056).

Almost surely, 2^42506068 is an apocalyptic number.

It is an amenable number.

42506068 is a deficient number, since it is larger than the sum of its proper divisors (38807276).

42506068 is a wasteful number, since it uses less digits than its factorization.

42506068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983 (or 1981 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 42506068 is about 6519.6677829472. The cubic root of 42506068 is about 348.9932101043.

The spelling of 42506068 in words is "forty-two million, five hundred six thousand, sixty-eight".