491346 has 28 divisors (see below), whose sum is σ = 1108302. Its totient is φ = 163296.

The previous prime is 491341. The next prime is 491353. The reversal of 491346 is 643194.

It can be written as a sum of positive squares in only one way, i.e., 455625 + 35721 = 675^2 + 189^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491341) 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 13 ways as a sum of consecutive naturals, for example, 1290 + ... + 1626.

2⁴⁹¹³⁴⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554151).

491346 is an abundant number, since it is smaller than the sum of its proper divisors (616956).

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

491346 is an equidigital number, since it uses as much as digits as its factorization.

491346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 342 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 491346 is about 700.9607692303. The cubic root of 491346 is about 78.9094727599.

The spelling of 491346 in words is "four hundred ninety-one thousand, three hundred forty-six".