491874674 has 8 divisors (see below), whose sum is σ = 738211968. Its totient is φ = 245804020.

The previous prime is 491874673. The next prime is 491874697. The reversal of 491874674 is 476478194.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (491874673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61982 + ... + 69465.

It is an arithmetic number, because the mean of its divisors is an integer number (92276496).

Almost surely, 2^491874674 is an apocalyptic number.

491874674 is a deficient number, since it is larger than the sum of its proper divisors (246337294).

491874674 is a wasteful number, since it uses less digits than its factorization.

491874674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133320.

The product of its digits is 1354752, while the sum is 50.

The square root of 491874674 is about 22178.2477666744. The cubic root of 491874674 is about 789.3776404773.

The spelling of 491874674 in words is "four hundred ninety-one million, eight hundred seventy-four thousand, six hundred seventy-four".