7290225280 has 64 divisors (see below), whose sum is σ = 18768846600. Its totient is φ = 2691772416.

The previous prime is 7290225253. The next prime is 7290225347. The reversal of 7290225280 is 825220927.

It can be written as a sum of positive squares in 4 ways, for example, as 6155343936 + 1134881344 = 78456^2 + 33688^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429795 + ... + 446434.

Almost surely, 2^7290225280 is an apocalyptic number.

It is an amenable number.

7290225280 is an abundant number, since it is smaller than the sum of its proper divisors (11478621320).

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

7290225280 is a wasteful number, since it uses less digits than its factorization.

7290225280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876261 (or 876249 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 7290225280 is about 85382.8160697456. The cubic root of 7290225280 is about 1939.0111941171.

The spelling of 7290225280 in words is "seven billion, two hundred ninety million, two hundred twenty-five thousand, two hundred eighty".