490998 has 32 divisors (see below), whose sum is σ = 1065600. Its totient is φ = 150336.

The previous prime is 490993. The next prime is 491003. The reversal of 490998 is 899094.

It is an interprime number because it is at equal distance from previous prime (490993) and next prime (491003).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 490998.

It is not an unprimeable number, because it can be changed into a prime (490991) by changing a digit.

490998 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 15 ways as a sum of consecutive naturals, for example, 6690 + ... + 6762.

It is an arithmetic number, because the mean of its divisors is an integer number (33300).

2⁴⁹⁰⁹⁹⁸ is an apocalyptic number.

490998 is an abundant number, since it is smaller than the sum of its proper divisors (574602).

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

490998 is a wasteful number, since it uses less digits than its factorization.

490998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 490998 is about 700.7124945368. The cubic root of 490998 is about 78.8908389241.

The spelling of 490998 in words is "four hundred ninety thousand, nine hundred ninety-eight".