42743218 has 16 divisors (see below), whose sum is σ = 73517184. Its totient is φ = 18257760.

The previous prime is 42743213. The next prime is 42743227. The reversal of 42743218 is 81234724.

It is a self number, because there is not a number n which added to its sum of digits gives 42743218.

It is not an unprimeable number, because it can be changed into a prime (42743213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555 + ... + 9262.

It is an arithmetic number, because the mean of its divisors is an integer number (4594824).

Almost surely, 2^42743218 is an apocalyptic number.

42743218 is a deficient number, since it is larger than the sum of its proper divisors (30773966).

42743218 is a wasteful number, since it uses less digits than its factorization.

42743218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10137.

The product of its digits is 10752, while the sum is 31.

The square root of 42743218 is about 6537.8297622376. The cubic root of 42743218 is about 349.6410415034.

The spelling of 42743218 in words is "forty-two million, seven hundred forty-three thousand, two hundred eighteen".