7287223280 has 20 divisors (see below), whose sum is σ = 16942794312. Its totient is φ = 2914889280.

The previous prime is 7287223277. The next prime is 7287223291. The reversal of 7287223280 is 823227827.

It is a tau number, because it is divible by the number of its divisors (20).

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 3 ways as a sum of consecutive naturals, for example, 45545066 + ... + 45545225.

Almost surely, 2^7287223280 is an apocalyptic number.

It is an amenable number.

7287223280 is an abundant number, since it is smaller than the sum of its proper divisors (9655571032).

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

7287223280 is a wasteful number, since it uses less digits than its factorization.

7287223280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91090304 (or 91090298 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 7287223280 is about 85365.2346098809. The cubic root of 7287223280 is about 1938.7450061485.

The spelling of 7287223280 in words is "seven billion, two hundred eighty-seven million, two hundred twenty-three thousand, two hundred eighty".