7244224481 has 4 divisors (see below), whose sum is σ = 7801472532. Its totient is φ = 6686976432.

The previous prime is 7244224469. The next prime is 7244224511. The reversal of 7244224481 is 1844224427.

It is a happy number.

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 4422915025 + 2821309456 = 66505^2 + 53116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7244224481 is a prime.

It is a super-2 number, since 2×7244224481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7243224481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278624006 + ... + 278624031.

It is an arithmetic number, because the mean of its divisors is an integer number (1950368133).

Almost surely, 2^7244224481 is an apocalyptic number.

It is an amenable number.

7244224481 is a deficient number, since it is larger than the sum of its proper divisors (557248051).

7244224481 is a wasteful number, since it uses less digits than its factorization.

7244224481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557248050.

The product of its digits is 114688, while the sum is 38.

The square root of 7244224481 is about 85113.0100572175. The cubic root of 7244224481 is about 1934.9242453545.

The spelling of 7244224481 in words is "seven billion, two hundred forty-four million, two hundred twenty-four thousand, four hundred eighty-one".