491330 has 16 divisors (see below), whose sum is σ = 1010880. Its totient is φ = 168432.

The previous prime is 491329. The next prime is 491333. The reversal of 491330 is 33194.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3440 + ... + 3579.

It is an arithmetic number, because the mean of its divisors is an integer number (63180).

2⁴⁹¹³³⁰ is an apocalyptic number.

491330 is an abundant number, since it is smaller than the sum of its proper divisors (519550).

It is a weird number, because it is abundant, but not a pseudoperfect number.

491330 is a wasteful number, since it uses less digits than its factorization.

491330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7033.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 491330 is about 700.9493562305. The cubic root of 491330 is about 78.9086162248.

The spelling of 491330 in words is "four hundred ninety-one thousand, three hundred thirty".