7232818 has 4 divisors (see below), whose sum is σ = 10849230. Its totient is φ = 3616408.

The previous prime is 7232809. The next prime is 7232839. The reversal of 7232818 is 8182327.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5870929 + 1361889 = 2423^2 + 1167^2 .

It is a super-2 number, since 2×7232818² = 104627312442248, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 7232818.

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 as a sum of consecutive naturals, namely, 1808203 + ... + 1808206.

Almost surely, 2^7232818 is an apocalyptic number.

7232818 is a deficient number, since it is larger than the sum of its proper divisors (3616412).

7232818 is a wasteful number, since it uses less digits than its factorization.

7232818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3616411.

The product of its digits is 5376, while the sum is 31.

The square root of 7232818 is about 2689.3898936376. The cubic root of 7232818 is about 193.3908159104.

The spelling of 7232818 in words is "seven million, two hundred thirty-two thousand, eight hundred eighteen".