491814 has 24 divisors (see below), whose sum is σ = 1081080. Its totient is φ = 161568.

The previous prime is 491797. The next prime is 491819. The reversal of 491814 is 418194.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 491814.

It is not an unprimeable number, because it can be changed into a prime (491819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1449 + ... + 1755.

It is an arithmetic number, because the mean of its divisors is an integer number (45045).

2⁴⁹¹⁸¹⁴ is an apocalyptic number.

491814 is an abundant number, since it is smaller than the sum of its proper divisors (589266).

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

491814 is a wasteful number, since it uses less digits than its factorization.

491814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 401 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 491814 is about 701.2945173035. The cubic root of 491814 is about 78.9345181892.

The spelling of 491814 in words is "four hundred ninety-one thousand, eight hundred fourteen".