791540 has 24 divisors (see below), whose sum is σ = 1750560. Its totient is φ = 299808.

The previous prime is 791519. The next prime is 791543. The reversal of 791540 is 45197.

791540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791543) by changing a digit.

791540 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662 + ... + 1421.

It is an arithmetic number, because the mean of its divisors is an integer number (72940).

2⁷⁹¹⁵⁴⁰ is an apocalyptic number.

It is an amenable number.

791540 is an abundant number, since it is smaller than the sum of its proper divisors (959020).

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

791540 is a wasteful number, since it uses less digits than its factorization.

791540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111 (or 2109 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 791540 is about 889.6853376335. The cubic root of 791540 is about 92.5033843417.

It can be divided in two parts, 791 and 540, that added together give a palindrome (1331).

The spelling of 791540 in words is "seven hundred ninety-one thousand, five hundred forty".