7272538238 has 32 divisors (see below), whose sum is σ = 12518022144. Its totient is φ = 3104129952.

The previous prime is 7272538213. The next prime is 7272538243. The reversal of 7272538238 is 8328352727.

It is a junction number, because it is equal to n+sod(n) for n = 7272538192 and 7272538201.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 5878556 + ... + 5879792.

It is an arithmetic number, because the mean of its divisors is an integer number (391188192).

Almost surely, 2^7272538238 is an apocalyptic number.

7272538238 is a deficient number, since it is larger than the sum of its proper divisors (5245483906).

7272538238 is a wasteful number, since it uses less digits than its factorization.

7272538238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2616.

The product of its digits is 1128960, while the sum is 47.

The square root of 7272538238 is about 85279.1782207122. The cubic root of 7272538238 is about 1937.4418258385.

The spelling of 7272538238 in words is "seven billion, two hundred seventy-two million, five hundred thirty-eight thousand, two hundred thirty-eight".