491230206 has 12 divisors (see below), whose sum is σ = 1064332152. Its totient is φ = 163743396.

The previous prime is 491230177. The next prime is 491230231. The reversal of 491230206 is 602032194.

It is a self number, because there is not a number n which added to its sum of digits gives 491230206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13645266 + ... + 13645301.

It is an arithmetic number, because the mean of its divisors is an integer number (88694346).

Almost surely, 2^491230206 is an apocalyptic number.

491230206 is an abundant number, since it is smaller than the sum of its proper divisors (573101946).

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

491230206 is a wasteful number, since it uses less digits than its factorization.

491230206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27290575 (or 27290572 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 491230206 is about 22163.7137231106. The cubic root of 491230206 is about 789.0327348869.

The spelling of 491230206 in words is "four hundred ninety-one million, two hundred thirty thousand, two hundred six".