491462940 has 24 divisors (see below), whose sum is σ = 1376096400. Its totient is φ = 131056768.

The previous prime is 491462903. The next prime is 491462957. The reversal of 491462940 is 49264194.

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 in 7 ways as a sum of consecutive naturals, for example, 4095465 + ... + 4095584.

It is an arithmetic number, because the mean of its divisors is an integer number (57337350).

Almost surely, 2^491462940 is an apocalyptic number.

It is an amenable number.

491462940 is an abundant number, since it is smaller than the sum of its proper divisors (884633460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

491462940 is a wasteful number, since it uses less digits than its factorization.

491462940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8191061 (or 8191059 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 491462940 is about 22168.9634399085. The cubic root of 491462940 is about 789.1573239622.

The spelling of 491462940 in words is "four hundred ninety-one million, four hundred sixty-two thousand, nine hundred forty".