490023 has 8 divisors (see below), whose sum is σ = 726000. Its totient is φ = 326664.

The previous prime is 490019. The next prime is 490031. The reversal of 490023 is 320094.

It is not a de Polignac number, because 490023 - 2² = 490019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 489978 and 490005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9048 + ... + 9101.

It is an arithmetic number, because the mean of its divisors is an integer number (90750).

2⁴⁹⁰⁰²³ is an apocalyptic number.

490023 is a deficient number, since it is larger than the sum of its proper divisors (235977).

490023 is a wasteful number, since it uses less digits than its factorization.

490023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18158 (or 18152 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 490023 is about 700.0164283786. The cubic root of 490023 is about 78.8385851213.

The spelling of 490023 in words is "four hundred ninety thousand, twenty-three".