491674384 has 40 divisors (see below), whose sum is σ = 1006260992. Its totient is φ = 232364160.

The previous prime is 491674369. The next prime is 491674399. The reversal of 491674384 is 483476194.

It is an interprime number because it is at equal distance from previous prime (491674369) and next prime (491674399).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9802 + ... + 32854.

Almost surely, 2^491674384 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 491674384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (503130496).

491674384 is an abundant number, since it is smaller than the sum of its proper divisors (514586608).

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

491674384 is a wasteful number, since it uses less digits than its factorization.

491674384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23135 (or 23129 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 491674384 is about 22173.7318464890. The cubic root of 491674384 is about 789.2704818041.

The spelling of 491674384 in words is "four hundred ninety-one million, six hundred seventy-four thousand, three hundred eighty-four".