7188066 has 24 divisors (see below), whose sum is σ = 15648204. Its totient is φ = 2384640.

The previous prime is 7188047. The next prime is 7188109. The reversal of 7188066 is 6608817.

It can be written as a sum of positive squares in 2 ways, for example, as 7177041 + 11025 = 2679^2 + 105^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7188066.

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, 3510 + ... + 5166.

Almost surely, 2^7188066 is an apocalyptic number.

7188066 is an abundant number, since it is smaller than the sum of its proper divisors (8460138).

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

7188066 is a wasteful number, since it uses less digits than its factorization.

7188066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906 (or 1903 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 7188066 is about 2681.0568811571. The cubic root of 7188066 is about 192.9911313455.

The spelling of 7188066 in words is "seven million, one hundred eighty-eight thousand, sixty-six".