491560 has 16 divisors (see below), whose sum is σ = 1106100. Its totient is φ = 196608.

The previous prime is 491539. The next prime is 491581. The reversal of 491560 is 65194.

It is an interprime number because it is at equal distance from previous prime (491539) and next prime (491581).

It can be written as a sum of positive squares in 2 ways, for example, as 487204 + 4356 = 698^2 + 66^2 .

It is an unprimeable number.

491560 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6105 + ... + 6184.

2⁴⁹¹⁵⁶⁰ is an apocalyptic number.

491560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

491560 is an abundant number, since it is smaller than the sum of its proper divisors (614540).

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

491560 is a wasteful number, since it uses less digits than its factorization.

491560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12300 (or 12296 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 491560 is about 701.1134002428. The cubic root of 491560 is about 78.9209271296.

The spelling of 491560 in words is "four hundred ninety-one thousand, five hundred sixty".