490440003 has 4 divisors (see below), whose sum is σ = 653920008. Its totient is φ = 326960000.

The previous prime is 490439981. The next prime is 490440007. The reversal of 490440003 is 300044094.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490440003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490440007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81739998 + ... + 81740003.

It is an arithmetic number, because the mean of its divisors is an integer number (163480002).

Almost surely, 2^490440003 is an apocalyptic number.

490440003 is a deficient number, since it is larger than the sum of its proper divisors (163480005).

490440003 is a wasteful number, since it uses less digits than its factorization.

490440003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163480004.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 490440003 is about 22145.8800457331. The cubic root of 490440003 is about 788.6094230679.

Adding to 490440003 its reverse (300044094), we get a palindrome (790484097).

The spelling of 490440003 in words is "four hundred ninety million, four hundred forty thousand, three".