7218108 has 36 divisors (see below), whose sum is σ = 18742360. Its totient is φ = 2340576.

The previous prime is 7218083. The next prime is 7218121. The reversal of 7218108 is 8018127.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1378 + ... + 4041.

Almost surely, 2^7218108 is an apocalyptic number.

It is an amenable number.

7218108 is an abundant number, since it is smaller than the sum of its proper divisors (11524252).

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

7218108 is a wasteful number, since it uses less digits than its factorization.

7218108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5466 (or 5461 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 7218108 is about 2686.6536806965. The cubic root of 7218108 is about 193.2596217875.

The spelling of 7218108 in words is "seven million, two hundred eighteen thousand, one hundred eight".