7991403232 has 24 divisors (see below), whose sum is σ = 16067824416. Its totient is φ = 3910685952.

The previous prime is 7991403209. The next prime is 7991403257. The reversal of 7991403232 is 2323041997.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2655213 + ... + 2658220.

It is an arithmetic number, because the mean of its divisors is an integer number (669492684).

Almost surely, 2^7991403232 is an apocalyptic number.

It is an amenable number.

7991403232 is an abundant number, since it is smaller than the sum of its proper divisors (8076421184).

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

7991403232 is a wasteful number, since it uses less digits than its factorization.

7991403232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5313490 (or 5313482 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 7991403232 is about 89394.6487883923. The cubic root of 7991403232 is about 1999.2833459008.

The spelling of 7991403232 in words is "seven billion, nine hundred ninety-one million, four hundred three thousand, two hundred thirty-two".