491782622 has 4 divisors (see below), whose sum is σ = 737673936. Its totient is φ = 245891310.

The previous prime is 491782589. The next prime is 491782633. The reversal of 491782622 is 226287194.

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

It is a self number, because there is not a number n which added to its sum of digits gives 491782622.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 122945654 + ... + 122945657.

It is an arithmetic number, because the mean of its divisors is an integer number (184418484).

Almost surely, 2^491782622 is an apocalyptic number.

491782622 is a deficient number, since it is larger than the sum of its proper divisors (245891314).

491782622 is a wasteful number, since it uses less digits than its factorization.

491782622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245891313.

The product of its digits is 96768, while the sum is 41.

The square root of 491782622 is about 22176.1723929086. The cubic root of 491782622 is about 789.3283946513.

The spelling of 491782622 in words is "four hundred ninety-one million, seven hundred eighty-two thousand, six hundred twenty-two".