491946 has 64 divisors (see below), whose sum is σ = 1306368. Its totient is φ = 119808.

The previous prime is 491923. The next prime is 491951. The reversal of 491946 is 649194.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9256 + ... + 9308.

It is an arithmetic number, because the mean of its divisors is an integer number (20412).

2⁴⁹¹⁹⁴⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653184).

491946 is an abundant number, since it is smaller than the sum of its proper divisors (814422).

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

491946 is a wasteful number, since it uses less digits than its factorization.

491946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95.

The product of its digits is 7776, while the sum is 33.

The square root of 491946 is about 701.3886226622. The cubic root of 491946 is about 78.9415794118.

The spelling of 491946 in words is "four hundred ninety-one thousand, nine hundred forty-six".