491512 has 32 divisors (see below), whose sum is σ = 1077120. Its totient is φ = 205920.

The previous prime is 491503. The next prime is 491527. The reversal of 491512 is 215194.

It is a super-2 number, since 2×491512² = 483168092288, which contains 22 as substring.

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, 3687 + ... + 3817.

It is an arithmetic number, because the mean of its divisors is an integer number (33660).

2⁴⁹¹⁵¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538560).

491512 is an abundant number, since it is smaller than the sum of its proper divisors (585608).

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

491512 is a wasteful number, since it uses less digits than its factorization.

491512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 207 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

The square root of 491512 is about 701.0791681401. The cubic root of 491512 is about 78.9183582144.

It can be divided in two parts, 49 and 1512, that multiplied together give a cube (74088 = 42³).

The spelling of 491512 in words is "four hundred ninety-one thousand, five hundred twelve".