7900028320 has 24 divisors (see below), whose sum is σ = 18663817284. Its totient is φ = 3160011264.

The previous prime is 7900028317. The next prime is 7900028329. The reversal of 7900028320 is 238200097.

It can be written as a sum of positive squares in 2 ways, for example, as 7852086544 + 47941776 = 88612^2 + 6924^2 .

It is not an unprimeable number, because it can be changed into a prime (7900028329) by changing a digit.

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, 24687429 + ... + 24687748.

Almost surely, 2^7900028320 is an apocalyptic number.

It is an amenable number.

7900028320 is an abundant number, since it is smaller than the sum of its proper divisors (10763788964).

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

7900028320 is a wasteful number, since it uses less digits than its factorization.

7900028320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49375192 (or 49375184 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 7900028320 is about 88882.1034854599. The cubic root of 7900028320 is about 1991.6340811609.

The spelling of 7900028320 in words is "seven billion, nine hundred million, twenty-eight thousand, three hundred twenty".