7227720256 has 21 divisors (see below), whose sum is σ = 14343857139. Its totient is φ = 3613520064.

The previous prime is 7227720127. The next prime is 7227720299. The reversal of 7227720256 is 6520277227.

The square root of 7227720256 is 85016.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 674815 + ... + 685441.

Almost surely, 2^7227720256 is an apocalyptic number.

7227720256 is the 85016-th square number.

It is an amenable number.

7227720256 is a deficient number, since it is larger than the sum of its proper divisors (7116136883).

7227720256 is an frugal number, since it uses more digits than its factorization.

7227720256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21266 (or 10629 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 40.

The cubic root of 7227720256 is about 1933.4537080288.

The spelling of 7227720256 in words is "seven billion, two hundred twenty-seven million, seven hundred twenty thousand, two hundred fifty-six".