7224392449 has 4 divisors (see below), whose sum is σ = 7473509460. Its totient is φ = 6975275440.

The previous prime is 7224392393. The next prime is 7224392473. The reversal of 7224392449 is 9442934227.

It is a happy number.

7224392449 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2316689424 + 4907703025 = 48132^2 + 70055^2 .

It is a cyclic number.

It is not a de Polignac number, because 7224392449 - 2¹¹ = 7224390401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7224392399 and 7224392408.

It is not an unprimeable number, because it can be changed into a prime (7224392479) 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, 124558462 + ... + 124558519.

It is an arithmetic number, because the mean of its divisors is an integer number (1868377365).

Almost surely, 2^7224392449 is an apocalyptic number.

It is an amenable number.

7224392449 is a deficient number, since it is larger than the sum of its proper divisors (249117011).

7224392449 is a wasteful number, since it uses less digits than its factorization.

7224392449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249117010.

The product of its digits is 870912, while the sum is 46.

The square root of 7224392449 is about 84996.4260954542. The cubic root of 7224392449 is about 1933.1569271036.

The spelling of 7224392449 in words is "seven billion, two hundred twenty-four million, three hundred ninety-two thousand, four hundred forty-nine".