42143318 has 16 divisors (see below), whose sum is σ = 72350880. Its totient is φ = 18035136.

The previous prime is 42143317. The next prime is 42143327. The reversal of 42143318 is 81334124.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42143317) 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, 10178 + ... + 13706.

It is an arithmetic number, because the mean of its divisors is an integer number (4521930).

Almost surely, 2^42143318 is an apocalyptic number.

42143318 is a deficient number, since it is larger than the sum of its proper divisors (30207562).

42143318 is a wasteful number, since it uses less digits than its factorization.

42143318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4391.

The product of its digits is 2304, while the sum is 26.

The square root of 42143318 is about 6491.7885054891. The cubic root of 42143318 is about 347.9975943375.

The spelling of 42143318 in words is "forty-two million, one hundred forty-three thousand, three hundred eighteen".