491084616 has 128 divisors (see below), whose sum is σ = 1372815360. Its totient is φ = 145152000.

The previous prime is 491084611. The next prime is 491084641. The reversal of 491084616 is 616480194.

It is not an unprimeable number, because it can be changed into a prime (491084611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3252141 + ... + 3252291.

It is an arithmetic number, because the mean of its divisors is an integer number (10725120).

Almost surely, 2^491084616 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 491084616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (686407680).

491084616 is an abundant number, since it is smaller than the sum of its proper divisors (881730744).

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

491084616 is a wasteful number, since it uses less digits than its factorization.

491084616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 491084616 is about 22160.4290572182. The cubic root of 491084616 is about 788.9547764435.

The spelling of 491084616 in words is "four hundred ninety-one million, eighty-four thousand, six hundred sixteen".