491480 has 32 divisors (see below), whose sum is σ = 1207440. Its totient is φ = 178560.

The previous prime is 491461. The next prime is 491483. The reversal of 491480 is 84194.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491483) by changing a digit.

491480 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 7 ways as a sum of consecutive naturals, for example, 119 + ... + 998.

2⁴⁹¹⁴⁸⁰ is an apocalyptic number.

491480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

491480 is an abundant number, since it is smaller than the sum of its proper divisors (715960).

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

491480 is a wasteful number, since it uses less digits than its factorization.

491480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139 (or 1135 counting only the distinct ones).

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

The square root of 491480 is about 701.0563458097. The cubic root of 491480 is about 78.9166455114.

It can be divided in two parts, 4914 and 80, that added together give a palindrome (4994).

The spelling of 491480 in words is "four hundred ninety-one thousand, four hundred eighty".