491938 has 8 divisors (see below), whose sum is σ = 741888. Its totient is φ = 244644.

The previous prime is 491923. The next prime is 491951. The reversal of 491938 is 839194.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

491938 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 3 ways as a sum of consecutive naturals, for example, 106 + ... + 997.

It is an arithmetic number, because the mean of its divisors is an integer number (92736).

2⁴⁹¹⁹³⁸ is an apocalyptic number.

491938 is a deficient number, since it is larger than the sum of its proper divisors (249950).

491938 is a wasteful number, since it uses less digits than its factorization.

491938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328.

The product of its digits is 7776, while the sum is 34.

The square root of 491938 is about 701.3829196666. The cubic root of 491938 is about 78.9411514948.

The spelling of 491938 in words is "four hundred ninety-one thousand, nine hundred thirty-eight".