7272922728 has 32 divisors (see below), whose sum is σ = 19251855360. Its totient is φ = 2281701120.

The previous prime is 7272922717. The next prime is 7272922729. The reversal of 7272922728 is 8272292727.

It is not an unprimeable number, because it can be changed into a prime (7272922729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8912488 + ... + 8913303.

It is an arithmetic number, because the mean of its divisors is an integer number (601620480).

Almost surely, 2^7272922728 is an apocalyptic number.

It is an amenable number.

7272922728 is an abundant number, since it is smaller than the sum of its proper divisors (11978932632).

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

7272922728 is a wasteful number, since it uses less digits than its factorization.

7272922728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17825817 (or 17825813 counting only the distinct ones).

The product of its digits is 790272, while the sum is 48.

The square root of 7272922728 is about 85281.4324926593. The cubic root of 7272922728 is about 1937.4759686121.

The spelling of 7272922728 in words is "seven billion, two hundred seventy-two million, nine hundred twenty-two thousand, seven hundred twenty-eight".