791715840 has 224 divisors, whose sum is σ = 2689433280. Its totient is φ = 198180864.

The previous prime is 791715839. The next prime is 791715877. The reversal of 791715840 is 48517197.

It is a junction number, because it is equal to n+sod(n) for n = 791715792 and 791715801.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2088771 + ... + 2089149.

Almost surely, 2^791715840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 791715840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1344716640).

791715840 is an abundant number, since it is smaller than the sum of its proper divisors (1897717440).

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

791715840 is a wasteful number, since it uses less digits than its factorization.

791715840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 42.

The square root of 791715840 is about 28137.4455130525. The cubic root of 791715840 is about 925.1023368636.

The spelling of 791715840 in words is "seven hundred ninety-one million, seven hundred fifteen thousand, eight hundred forty".