7272713520 has 160 divisors (see below), whose sum is σ = 25231718400. Its totient is φ = 1925358336.

The previous prime is 7272713519. The next prime is 7272713527. The reversal of 7272713520 is 253172727.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (7272713527) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 288129 + ... + 312351.

It is an arithmetic number, because the mean of its divisors is an integer number (157698240).

Almost surely, 2^7272713520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7272713520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12615859200).

7272713520 is an abundant number, since it is smaller than the sum of its proper divisors (17959004880).

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

7272713520 is a wasteful number, since it uses less digits than its factorization.

7272713520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24384 (or 24372 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The square root of 7272713520 is about 85280.2059096951. The cubic root of 7272713520 is about 1937.4573910574.

The spelling of 7272713520 in words is "seven billion, two hundred seventy-two million, seven hundred thirteen thousand, five hundred twenty".