491467956 has 48 divisors (see below), whose sum is σ = 1367568384. Its totient is φ = 134313696.

The previous prime is 491467937. The next prime is 491467957. The reversal of 491467956 is 659764194.

It is a junction number, because it is equal to n+sod(n) for n = 491467899 and 491467908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491467957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125260 + ... + 129123.

It is an arithmetic number, because the mean of its divisors is an integer number (28491008).

Almost surely, 2^491467956 is an apocalyptic number.

491467956 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

491467956 is an abundant number, since it is smaller than the sum of its proper divisors (876100428).

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

491467956 is a wasteful number, since it uses less digits than its factorization.

491467956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254420 (or 254418 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The square root of 491467956 is about 22169.0765707550. The cubic root of 491467956 is about 789.1600087355.

The spelling of 491467956 in words is "four hundred ninety-one million, four hundred sixty-seven thousand, nine hundred fifty-six".