490738 has 8 divisors (see below), whose sum is σ = 761580. Its totient is φ = 236880.

The previous prime is 490733. The next prime is 490741. The reversal of 490738 is 837094.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 471969 + 18769 = 687^2 + 137^2 .

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

It is not an unprimeable number, because it can be changed into a prime (490733) by changing a digit.

490738 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 3 ways as a sum of consecutive naturals, for example, 4173 + ... + 4288.

2⁴⁹⁰⁷³⁸ is an apocalyptic number.

490738 is a deficient number, since it is larger than the sum of its proper divisors (270842).

490738 is a wasteful number, since it uses less digits than its factorization.

490738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8492.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 490738 is about 700.5269445211. The cubic root of 490738 is about 78.8769113455.

The spelling of 490738 in words is "four hundred ninety thousand, seven hundred thirty-eight".