491048 has 8 divisors (see below), whose sum is σ = 920730. Its totient is φ = 245520.

The previous prime is 491041. The next prime is 491059. The reversal of 491048 is 840194.

It can be written as a sum of positive squares in only one way, i.e., 487204 + 3844 = 698^2 + 62^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×491048² = 482256276608, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 491048.

It is not an unprimeable number, because it can be changed into a prime (491041) by changing a digit.

491048 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30683 + ... + 30698.

2⁴⁹¹⁰⁴⁸ is an apocalyptic number.

It is an amenable number.

491048 is a deficient number, since it is larger than the sum of its proper divisors (429682).

491048 is a wasteful number, since it uses less digits than its factorization.

491048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61387 (or 61383 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 491048 is about 700.7481715995. The cubic root of 491048 is about 78.8935167409.

The spelling of 491048 in words is "four hundred ninety-one thousand, forty-eight".