491892 has 24 divisors (see below), whose sum is σ = 1159200. Its totient is φ = 162336.

The previous prime is 491873. The next prime is 491899. The reversal of 491892 is 298194.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491899) by changing a digit.

491892 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, 2034 + ... + 2262.

It is an arithmetic number, because the mean of its divisors is an integer number (48300).

2⁴⁹¹⁸⁹² is an apocalyptic number.

It is an amenable number.

491892 is an abundant number, since it is smaller than the sum of its proper divisors (667308).

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

491892 is a wasteful number, since it uses less digits than its factorization.

491892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 413 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 491892 is about 701.3501265417. The cubic root of 491892 is about 78.9386908825.

The spelling of 491892 in words is "four hundred ninety-one thousand, eight hundred ninety-two".