7231330 has 8 divisors (see below), whose sum is σ = 13016412. Its totient is φ = 2892528.

The previous prime is 7231319. The next prime is 7231333. The reversal of 7231330 is 331327.

It can be written as a sum of positive squares in 2 ways, for example, as 7177041 + 54289 = 2679^2 + 233^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 7231298 and 7231307.

It is not an unprimeable number, because it can be changed into a prime (7231333) 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 in 3 ways as a sum of consecutive naturals, for example, 361557 + ... + 361576.

Almost surely, 2^7231330 is an apocalyptic number.

7231330 is a deficient number, since it is larger than the sum of its proper divisors (5785082).

7231330 is a wasteful number, since it uses less digits than its factorization.

7231330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723140.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 7231330 is about 2689.1132367381. The cubic root of 7231330 is about 193.3775529715.

Adding to 7231330 its reverse (331327), we get a palindrome (7562657).

The spelling of 7231330 in words is "seven million, two hundred thirty-one thousand, three hundred thirty".