791040 has 80 divisors (see below), whose sum is σ = 2553408. Its totient is φ = 208896.

The previous prime is 791029. The next prime is 791047. The reversal of 791040 is 40197.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 790998 and 791016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7629 + ... + 7731.

2⁷⁹¹⁰⁴⁰ 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 791040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1276704).

791040 is an abundant number, since it is smaller than the sum of its proper divisors (1762368).

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

791040 is a wasteful number, since it uses less digits than its factorization.

791040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 791040 is about 889.4042950200. The cubic root of 791040 is about 92.4839027260.

The spelling of 791040 in words is "seven hundred ninety-one thousand, forty".