7242332321 has 4 divisors (see below), whose sum is σ = 8276951232. Its totient is φ = 6207713412.

The previous prime is 7242332309. The next prime is 7242332323. The reversal of 7242332321 is 1232332427.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7242332321 - 2⁶ = 7242332257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7242332323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517309445 + ... + 517309458.

It is an arithmetic number, because the mean of its divisors is an integer number (2069237808).

Almost surely, 2^7242332321 is an apocalyptic number.

It is an amenable number.

7242332321 is a deficient number, since it is larger than the sum of its proper divisors (1034618911).

7242332321 is a wasteful number, since it uses less digits than its factorization.

7242332321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034618910.

The product of its digits is 12096, while the sum is 29.

The square root of 7242332321 is about 85101.8937568372. The cubic root of 7242332321 is about 1934.7557660793.

Adding to 7242332321 its reverse (1232332427), we get a palindrome (8474664748).

The spelling of 7242332321 in words is "seven billion, two hundred forty-two million, three hundred thirty-two thousand, three hundred twenty-one".