491102386 has 16 divisors (see below), whose sum is σ = 777441600. Its totient is φ = 232022448.

The previous prime is 491102357. The next prime is 491102401. The reversal of 491102386 is 683201194.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1830 + ... + 31393.

It is an arithmetic number, because the mean of its divisors is an integer number (48590100).

Almost surely, 2^491102386 is an apocalyptic number.

491102386 is a deficient number, since it is larger than the sum of its proper divisors (286339214).

491102386 is a wasteful number, since it uses less digits than its factorization.

491102386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33633.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 491102386 is about 22160.8299934817. The cubic root of 491102386 is about 788.9642924935.

The spelling of 491102386 in words is "four hundred ninety-one million, one hundred two thousand, three hundred eighty-six".