491846236 has 24 divisors (see below), whose sum is σ = 1035466880. Its totient is φ = 199696752.

The previous prime is 491846221. The next prime is 491846239. The reversal of 491846236 is 632648194.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 491846192 and 491846201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491846239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461730 + ... + 462793.

Almost surely, 2^491846236 is an apocalyptic number.

It is an amenable number.

491846236 is an abundant number, since it is smaller than the sum of its proper divisors (543620644).

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

491846236 is a wasteful number, since it uses less digits than its factorization.

491846236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924553 (or 924551 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 491846236 is about 22177.6066337195. The cubic root of 491846236 is about 789.3624274192.

The spelling of 491846236 in words is "four hundred ninety-one million, eight hundred forty-six thousand, two hundred thirty-six".