490040003 has 4 divisors (see below), whose sum is σ = 490593360. Its totient is φ = 489486648.

The previous prime is 490039987. The next prime is 490040009. The reversal of 490040003 is 300040094.

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

It is a cyclic number.

It is not a de Polignac number, because 490040003 - 2⁴ = 490039987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490040009) 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, 275348 + ... + 277121.

It is an arithmetic number, because the mean of its divisors is an integer number (122648340).

Almost surely, 2^490040003 is an apocalyptic number.

490040003 is a deficient number, since it is larger than the sum of its proper divisors (553357).

490040003 is an equidigital number, since it uses as much as digits as its factorization.

490040003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553356.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 490040003 is about 22136.8471784037. The cubic root of 490040003 is about 788.3949696762.

Adding to 490040003 its reverse (300040094), we get a palindrome (790080097).

The spelling of 490040003 in words is "four hundred ninety million, forty thousand, three".