491274 has 36 divisors (see below), whose sum is σ = 1240434. Its totient is φ = 140112.

The previous prime is 491273. The next prime is 491279. The reversal of 491274 is 472194.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 480249 + 11025 = 693^2 + 105^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 491274.

It is not an unprimeable number, because it can be changed into a prime (491273) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 604 + ... + 1160.

2⁴⁹¹²⁷⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (620217).

491274 is an abundant number, since it is smaller than the sum of its proper divisors (749160).

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

491274 is a wasteful number, since it uses less digits than its factorization.

491274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 569 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 491274 is about 700.9094092677. The cubic root of 491274 is about 78.9056182056.

It can be divided in two parts, 49 and 1274, that multiplied together give a palindrome (62426).

The spelling of 491274 in words is "four hundred ninety-one thousand, two hundred seventy-four".