7282972728 has 24 divisors (see below), whose sum is σ = 19724718000. Its totient is φ = 2427657552.

The previous prime is 7282972727. The next prime is 7282972777. The reversal of 7282972728 is 8272792827.

7282972728 is a `hidden beast` number, since 7 + 282 + 97 + 272 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7282972727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50576128 + ... + 50576271.

It is an arithmetic number, because the mean of its divisors is an integer number (821863250).

Almost surely, 2^7282972728 is an apocalyptic number.

It is an amenable number.

7282972728 is an abundant number, since it is smaller than the sum of its proper divisors (12441745272).

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

7282972728 is a wasteful number, since it uses less digits than its factorization.

7282972728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101152411 (or 101152404 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 54.

The square root of 7282972728 is about 85340.3347075696. The cubic root of 7282972728 is about 1938.3679837488.

It can be divided in two parts, 728297 and 2728, that added together give a square (731025 = 855²).

The spelling of 7282972728 in words is "seven billion, two hundred eighty-two million, nine hundred seventy-two thousand, seven hundred twenty-eight".