42067718 has 32 divisors (see below), whose sum is σ = 79176960. Its totient is φ = 16284960.

The previous prime is 42067709. The next prime is 42067721. The reversal of 42067718 is 81776024.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 25853 + ... + 27431.

It is an arithmetic number, because the mean of its divisors is an integer number (2474280).

Almost surely, 2^42067718 is an apocalyptic number.

42067718 is a deficient number, since it is larger than the sum of its proper divisors (37109242).

42067718 is a wasteful number, since it uses less digits than its factorization.

42067718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 42067718 is about 6485.9631512983. The cubic root of 42067718 is about 347.7893812956.

The spelling of 42067718 in words is "forty-two million, sixty-seven thousand, seven hundred eighteen".