7200218 has 16 divisors (see below), whose sum is σ = 11040000. Its totient is φ = 3521232.

The previous prime is 7200217. The next prime is 7200223. The reversal of 7200218 is 8120027.

It is a self number, because there is not a number n which added to its sum of digits gives 7200218.

It is not an unprimeable number, because it can be changed into a prime (7200211) 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, 31328 + ... + 31556.

It is an arithmetic number, because the mean of its divisors is an integer number (690000).

Almost surely, 2^7200218 is an apocalyptic number.

7200218 is a deficient number, since it is larger than the sum of its proper divisors (3839782).

7200218 is a wasteful number, since it uses less digits than its factorization.

7200218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 7200218 is about 2683.3221945939. The cubic root of 7200218 is about 193.0998257597.

The spelling of 7200218 in words is "seven million, two hundred thousand, two hundred eighteen".