7248218 has 4 divisors (see below), whose sum is σ = 10872330. Its totient is φ = 3624108.

The previous prime is 7248217. The next prime is 7248223. The reversal of 7248218 is 8128427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8128427 = 983 ⋅8269.

It can be written as a sum of positive squares in only one way, i.e., 7198489 + 49729 = 2683^2 + 223^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7248211) 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 as a sum of consecutive naturals, namely, 1812053 + ... + 1812056.

Almost surely, 2^7248218 is an apocalyptic number.

7248218 is a deficient number, since it is larger than the sum of its proper divisors (3624112).

7248218 is a wasteful number, since it uses less digits than its factorization.

7248218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3624111.

The product of its digits is 7168, while the sum is 32.

The square root of 7248218 is about 2692.2514741383. The cubic root of 7248218 is about 193.5279734856.

The spelling of 7248218 in words is "seven million, two hundred forty-eight thousand, two hundred eighteen".