7272003730 has 16 divisors (see below), whose sum is σ = 13095065880. Its totient is φ = 2907588352.

The previous prime is 7272003727. The next prime is 7272003757. The reversal of 7272003730 is 373002727.

It can be written as a sum of positive squares in 4 ways, for example, as 7155298921 + 116704809 = 84589^2 + 10803^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7272003692 and 7272003701.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126265 + ... + 174604.

Almost surely, 2^7272003730 is an apocalyptic number.

7272003730 is a deficient number, since it is larger than the sum of its proper divisors (5823062150).

7272003730 is a wasteful number, since it uses less digits than its factorization.

7272003730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303293.

The product of its (nonzero) digits is 12348, while the sum is 31.

The square root of 7272003730 is about 85276.0442914656. The cubic root of 7272003730 is about 1937.3943594431.

The spelling of 7272003730 in words is "seven billion, two hundred seventy-two million, three thousand, seven hundred thirty".