7224389539 has 24 divisors (see below), whose sum is σ = 7665057792. Its totient is φ = 6807865680.

The previous prime is 7224389507. The next prime is 7224389569. The reversal of 7224389539 is 9359834227.

It is not a de Polignac number, because 7224389539 - 2⁵ = 7224389507 is a prime.

It is a super-2 number, since 2×7224389539² (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 (7224389569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12831672 + ... + 12832234.

It is an arithmetic number, because the mean of its divisors is an integer number (319377408).

Almost surely, 2^7224389539 is an apocalyptic number.

7224389539 is a deficient number, since it is larger than the sum of its proper divisors (440668253).

7224389539 is a wasteful number, since it uses less digits than its factorization.

7224389539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927 (or 904 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 52.

The square root of 7224389539 is about 84996.4089770856. The cubic root of 7224389539 is about 1933.1566675437.

The spelling of 7224389539 in words is "seven billion, two hundred twenty-four million, three hundred eighty-nine thousand, five hundred thirty-nine".