791499280 has 160 divisors (see below), whose sum is σ = 2213608320. Its totient is φ = 259338240.

The previous prime is 791499259. The next prime is 791499281. The reversal of 791499280 is 82994197.

It is a super-2 number, since 2×791499280² = 1252942220481036800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (791499281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 491116 + ... + 492724.

It is an arithmetic number, because the mean of its divisors is an integer number (13835052).

Almost surely, 2^791499280 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 791499280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1106804160).

791499280 is an abundant number, since it is smaller than the sum of its proper divisors (1422109040).

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

791499280 is a wasteful number, since it uses less digits than its factorization.

791499280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689 (or 1683 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 791499280 is about 28133.5969971847. The cubic root of 791499280 is about 925.0179806585.

The spelling of 791499280 in words is "seven hundred ninety-one million, four hundred ninety-nine thousand, two hundred eighty".