491682734 has 4 divisors (see below), whose sum is σ = 737524104. Its totient is φ = 245841366.

The previous prime is 491682731. The next prime is 491682743. The reversal of 491682734 is 437286194.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×491682734³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491682731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122920682 + ... + 122920685.

It is an arithmetic number, because the mean of its divisors is an integer number (184381026).

Almost surely, 2^491682734 is an apocalyptic number.

491682734 is a deficient number, since it is larger than the sum of its proper divisors (245841370).

491682734 is a wasteful number, since it uses less digits than its factorization.

491682734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245841369.

The product of its digits is 290304, while the sum is 44.

The square root of 491682734 is about 22173.9201315419. The cubic root of 491682734 is about 789.2749497823.

The spelling of 491682734 in words is "four hundred ninety-one million, six hundred eighty-two thousand, seven hundred thirty-four".