7243370728 has 24 divisors (see below), whose sum is σ = 14928229890. Its totient is φ = 3292440800.

The previous prime is 7243370713. The next prime is 7243370753. The reversal of 7243370728 is 8270733427.

It can be written as a sum of positive squares in only one way, i.e., 6451623684 + 791747044 = 80322^2 + 28138^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3740443 + ... + 3742378.

Almost surely, 2^7243370728 is an apocalyptic number.

It is an amenable number.

7243370728 is an abundant number, since it is smaller than the sum of its proper divisors (7684859162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7243370728 is a wasteful number, since it uses less digits than its factorization.

7243370728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7482849 (or 7482834 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 43.

The square root of 7243370728 is about 85107.9945011043. The cubic root of 7243370728 is about 1934.8482302115.

The spelling of 7243370728 in words is "seven billion, two hundred forty-three million, three hundred seventy thousand, seven hundred twenty-eight".