491244 has 48 divisors (see below), whose sum is σ = 1279488. Its totient is φ = 145728.

The previous prime is 491219. The next prime is 491251. The reversal of 491244 is 442194.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 491244.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7299 + ... + 7365.

It is an arithmetic number, because the mean of its divisors is an integer number (26656).

2⁴⁹¹²⁴⁴ 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 491244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (639744).

491244 is an abundant number, since it is smaller than the sum of its proper divisors (788244).

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

491244 is a wasteful number, since it uses less digits than its factorization.

491244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 132 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 491244 is about 700.8880081725. Note that the first 3 decimals coincide. The cubic root of 491244 is about 78.9040120301.

The spelling of 491244 in words is "four hundred ninety-one thousand, two hundred forty-four".