7042218 has 32 divisors (see below), whose sum is σ = 14515200. Its totient is φ = 2276976.

The previous prime is 7042207. The next prime is 7042219. The reversal of 7042218 is 8122407.

It is not an unprimeable number, because it can be changed into a prime (7042219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39253 + ... + 39431.

It is an arithmetic number, because the mean of its divisors is an integer number (453600).

Almost surely, 2^7042218 is an apocalyptic number.

7042218 is an abundant number, since it is smaller than the sum of its proper divisors (7472982).

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

7042218 is a wasteful number, since it uses less digits than its factorization.

7042218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 7042218 is about 2653.7177694698. The cubic root of 7042218 is about 191.6769197624.

It can be divided in two parts, 7042 and 218, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 7042218 in words is "seven million, forty-two thousand, two hundred eighteen".