491198304 has 96 divisors (see below), whose sum is σ = 1352090880. Its totient is φ = 155843072.

The previous prime is 491198303. The next prime is 491198311. The reversal of 491198304 is 403891194.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491198303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593539 + ... + 594365.

It is an arithmetic number, because the mean of its divisors is an integer number (14084280).

Almost surely, 2^491198304 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 491198304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (676045440).

491198304 is an abundant number, since it is smaller than the sum of its proper divisors (860892576).

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

491198304 is a wasteful number, since it uses less digits than its factorization.

491198304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 491198304 is about 22162.9940215667. The cubic root of 491198304 is about 789.0156537798.

The spelling of 491198304 in words is "four hundred ninety-one million, one hundred ninety-eight thousand, three hundred four".