491376 has 40 divisors (see below), whose sum is σ = 1316880. Its totient is φ = 157696.

The previous prime is 491371. The next prime is 491377. The reversal of 491376 is 673194.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491371) by changing a digit.

491376 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1216 + ... + 1568.

It is an arithmetic number, because the mean of its divisors is an integer number (32922).

2⁴⁹¹³⁷⁶ 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 491376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658440).

491376 is an abundant number, since it is smaller than the sum of its proper divisors (825504).

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

491376 is a wasteful number, since it uses less digits than its factorization.

491376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 387 counting only the distinct ones).

The product of its digits is 4536, while the sum is 30.

The square root of 491376 is about 700.9821681042. The cubic root of 491376 is about 78.9110787131.

The spelling of 491376 in words is "four hundred ninety-one thousand, three hundred seventy-six".