491205802 has 32 divisors (see below), whose sum is σ = 790725888. Its totient is φ = 228324096.

The previous prime is 491205791. The next prime is 491205817. The reversal of 491205802 is 208502194.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274603 + ... + 276385.

It is an arithmetic number, because the mean of its divisors is an integer number (24710184).

Almost surely, 2^491205802 is an apocalyptic number.

491205802 is a deficient number, since it is larger than the sum of its proper divisors (299520086).

491205802 is a wasteful number, since it uses less digits than its factorization.

491205802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 491205802 is about 22163.1631767670. The cubic root of 491205802 is about 789.0196684579.

Adding to 491205802 its reverse (208502194), we get a palindrome (699707996).

The spelling of 491205802 in words is "four hundred ninety-one million, two hundred five thousand, eight hundred two".