491468244 has 12 divisors (see below), whose sum is σ = 1146759264. Its totient is φ = 163822744.

The previous prime is 491468239. The next prime is 491468273. The reversal of 491468244 is 442864194.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 491468196 and 491468205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20477832 + ... + 20477855.

It is an arithmetic number, because the mean of its divisors is an integer number (95563272).

Almost surely, 2^491468244 is an apocalyptic number.

It is an amenable number.

491468244 is an abundant number, since it is smaller than the sum of its proper divisors (655291020).

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

491468244 is a wasteful number, since it uses less digits than its factorization.

491468244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40955694 (or 40955692 counting only the distinct ones).

The product of its digits is 221184, while the sum is 42.

The square root of 491468244 is about 22169.0830662885. The cubic root of 491468244 is about 789.1601628846.

The spelling of 491468244 in words is "four hundred ninety-one million, four hundred sixty-eight thousand, two hundred forty-four".