491360 has 48 divisors (see below), whose sum is σ = 1206576. Its totient is φ = 188928.

The previous prime is 491357. The next prime is 491371. The reversal of 491360 is 63194.

491360 = T₁₅₉ + T₁₆₀ + ... + T₁₉₀.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5879 + ... + 5961.

It is an arithmetic number, because the mean of its divisors is an integer number (25137).

2⁴⁹¹³⁶⁰ is an apocalyptic number.

491360 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (603288).

491360 is an abundant number, since it is smaller than the sum of its proper divisors (715216).

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

491360 is a wasteful number, since it uses less digits than its factorization.

491360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 491360 is about 700.9707554528. The cubic root of 491360 is about 78.9102222129.

The spelling of 491360 in words is "four hundred ninety-one thousand, three hundred sixty".