491212358 has 96 divisors (see below), whose sum is σ = 983808000. Its totient is φ = 183272544.

The previous prime is 491212327. The next prime is 491212361. The reversal of 491212358 is 853212194.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2202635 + ... + 2202857.

It is an arithmetic number, because the mean of its divisors is an integer number (10248000).

Almost surely, 2^491212358 is an apocalyptic number.

491212358 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

491212358 is a wasteful number, since it uses less digits than its factorization.

491212358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 264 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 491212358 is about 22163.3110793491. The cubic root of 491212358 is about 789.0231787245.

The spelling of 491212358 in words is "four hundred ninety-one million, two hundred twelve thousand, three hundred fifty-eight".