490609 has 8 divisors (see below), whose sum is σ = 566720. Its totient is φ = 416016.

The previous prime is 490591. The next prime is 490619. The reversal of 490609 is 906094.

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

It is a cyclic number.

It is not a de Polignac number, because 490609 - 2⁵ = 490577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490619) 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, 442 + ... + 1084.

It is an arithmetic number, because the mean of its divisors is an integer number (70840).

2⁴⁹⁰⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

490609 is a deficient number, since it is larger than the sum of its proper divisors (76111).

490609 is a wasteful number, since it uses less digits than its factorization.

490609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 490609 is about 700.4348649232. The cubic root of 490609 is about 78.8699992979.

The spelling of 490609 in words is "four hundred ninety thousand, six hundred nine".