491071952 has 40 divisors (see below), whose sum is σ = 1089846912. Its totient is φ = 209980800.

The previous prime is 491071943. The next prime is 491071969. The reversal of 491071952 is 259170194.

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, 46877 + ... + 56387.

Almost surely, 2^491071952 is an apocalyptic number.

It is an amenable number.

491071952 is an abundant number, since it is smaller than the sum of its proper divisors (598774960).

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

491071952 is a wasteful number, since it uses less digits than its factorization.

491071952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9987 (or 9981 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 491071952 is about 22160.1433208362. The cubic root of 491071952 is about 788.9479945782.

The spelling of 491071952 in words is "four hundred ninety-one million, seventy-one thousand, nine hundred fifty-two".