491294206 has 32 divisors (see below), whose sum is σ = 819020160. Its totient is φ = 219608064.

The previous prime is 491294201. The next prime is 491294213. The reversal of 491294206 is 602492194.

It is a happy number.

It is a super-3 number, since 3×491294206³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491294201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106606 + ... + 111118.

It is an arithmetic number, because the mean of its divisors is an integer number (25594380).

Almost surely, 2^491294206 is an apocalyptic number.

491294206 is a deficient number, since it is larger than the sum of its proper divisors (327725954).

491294206 is a wasteful number, since it uses less digits than its factorization.

491294206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4660.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 491294206 is about 22165.1574774464. The cubic root of 491294206 is about 789.0669998144.

It can be divided in two parts, 49129 and 4206, that added together give a palindrome (53335).

The spelling of 491294206 in words is "four hundred ninety-one million, two hundred ninety-four thousand, two hundred six".