491260 has 72 divisors (see below), whose sum is σ = 1340640. Its totient is φ = 147840.

The previous prime is 491251. The next prime is 491261. The reversal of 491260 is 62194.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491261) by changing a digit.

491260 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 23 ways as a sum of consecutive naturals, for example, 16926 + ... + 16954.

It is an arithmetic number, because the mean of its divisors is an integer number (18620).

2⁴⁹¹²⁶⁰ 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 491260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (670320).

491260 is an abundant number, since it is smaller than the sum of its proper divisors (849380).

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

491260 is a wasteful number, since it uses less digits than its factorization.

491260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 491260 is about 700.8994221713. The cubic root of 491260 is about 78.9048686652.

The spelling of 491260 in words is "four hundred ninety-one thousand, two hundred sixty".