7640307328 has 16 divisors (see below), whose sum is σ = 15220925010. Its totient is φ = 3820153600.

The previous prime is 7640307293. The next prime is 7640307347. The reversal of 7640307328 is 8237030467.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7549524544 + 90782784 = 86888^2 + 9528^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29844823 + ... + 29845078.

Almost surely, 2^7640307328 is an apocalyptic number.

It is an amenable number.

7640307328 is a deficient number, since it is larger than the sum of its proper divisors (7580617682).

7640307328 is an equidigital number, since it uses as much as digits as its factorization.

7640307328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59689915 (or 59689903 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 7640307328 is about 87408.8515426212. The cubic root of 7640307328 is about 1969.5648096046.

The spelling of 7640307328 in words is "seven billion, six hundred forty million, three hundred seven thousand, three hundred twenty-eight".