7990635338 has 16 divisors (see below), whose sum is σ = 13902684864. Its totient is φ = 3373444800.

The previous prime is 7990635313. The next prime is 7990635353. The reversal of 7990635338 is 8335360997.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 7990635338.

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, 4258463 + ... + 4260338.

It is an arithmetic number, because the mean of its divisors is an integer number (868917804).

Almost surely, 2^7990635338 is an apocalyptic number.

7990635338 is a deficient number, since it is larger than the sum of its proper divisors (5912049526).

7990635338 is a wasteful number, since it uses less digits than its factorization.

7990635338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8518877.

The product of its (nonzero) digits is 3674160, while the sum is 53.

The square root of 7990635338 is about 89390.3537189556. The cubic root of 7990635338 is about 1999.2193067987.

The spelling of 7990635338 in words is "seven billion, nine hundred ninety million, six hundred thirty-five thousand, three hundred thirty-eight".