42751218 has 8 divisors (see below), whose sum is σ = 85502448. Its totient is φ = 14250404.

The previous prime is 42751213. The next prime is 42751253. The reversal of 42751218 is 81215724.

It is a sphenic number, since it is the product of 3 distinct primes.

42751218 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (42751211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3562596 + ... + 3562607.

It is an arithmetic number, because the mean of its divisors is an integer number (10687806).

Almost surely, 2^42751218 is an apocalyptic number.

42751218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42751218 is a wasteful number, since it uses less digits than its factorization.

42751218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7125208.

The product of its digits is 4480, while the sum is 30.

The square root of 42751218 is about 6538.4415574355. The cubic root of 42751218 is about 349.6628535707.

The spelling of 42751218 in words is "forty-two million, seven hundred fifty-one thousand, two hundred eighteen".