491732 has 12 divisors (see below), whose sum is σ = 865620. Its totient is φ = 244416.

The previous prime is 491731. The next prime is 491737. The reversal of 491732 is 237194.

It can be written as a sum of positive squares in 2 ways, for example, as 217156 + 274576 = 466^2 + 524^2 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 491732.

It is not an unprimeable number, because it can be changed into a prime (491731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 848 + ... + 1304.

It is an arithmetic number, because the mean of its divisors is an integer number (72135).

2⁴⁹¹⁷³² is an apocalyptic number.

It is an amenable number.

491732 is a deficient number, since it is larger than the sum of its proper divisors (373888).

491732 is a wasteful number, since it uses less digits than its factorization.

491732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 728 counting only the distinct ones).

The product of its digits is 1512, while the sum is 26.

The square root of 491732 is about 701.2360515547. The cubic root of 491732 is about 78.9301310359.

It can be divided in two parts, 49173 and 2, that multiplied together give a triangular number (98346 = T₄₄₃).

The spelling of 491732 in words is "four hundred ninety-one thousand, seven hundred thirty-two".