491944852 has 12 divisors (see below), whose sum is σ = 983889760. Its totient is φ = 210833496.

The previous prime is 491944823. The next prime is 491944853. The reversal of 491944852 is 258449194.

491944852 is an admirable number.

It is a super-3 number, since 3×491944852³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491944853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8784702 + ... + 8784757.

Almost surely, 2^491944852 is an apocalyptic number.

It is an amenable number.

491944852 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

491944852 is a wasteful number, since it uses less digits than its factorization.

491944852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17569470 (or 17569468 counting only the distinct ones).

The product of its digits is 414720, while the sum is 46.

The square root of 491944852 is about 22179.8298460561. The cubic root of 491944852 is about 789.4151800598.

The spelling of 491944852 in words is "four hundred ninety-one million, nine hundred forty-four thousand, eight hundred fifty-two".