7990007408 has 20 divisors (see below), whose sum is σ = 15734422248. Its totient is φ = 3929511360.

The previous prime is 7990007407. The next prime is 7990007423. The reversal of 7990007408 is 8047000997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7990007407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4092266 + ... + 4094217.

Almost surely, 2^7990007408 is an apocalyptic number.

It is an amenable number.

7990007408 is a deficient number, since it is larger than the sum of its proper divisors (7744414840).

7990007408 is a wasteful number, since it uses less digits than its factorization.

7990007408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8186552 (or 8186546 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 7990007408 is about 89386.8413582223. The cubic root of 7990007408 is about 1999.1669370512.

The spelling of 7990007408 in words is "seven billion, nine hundred ninety million, seven thousand, four hundred eight".