490908648 has 32 divisors (see below), whose sum is σ = 1244088000. Its totient is φ = 161394048.

The previous prime is 490908647. The next prime is 490908659. The reversal of 490908648 is 846809094.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 490908597 and 490908606.

It is not an unprimeable number, because it can be changed into a prime (490908647) 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, 138348 + ... + 141851.

It is an arithmetic number, because the mean of its divisors is an integer number (38877750).

Almost surely, 2^490908648 is an apocalyptic number.

It is an amenable number.

490908648 is an abundant number, since it is smaller than the sum of its proper divisors (753179352).

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

490908648 is a wasteful number, since it uses less digits than its factorization.

490908648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280281 (or 280277 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 490908648 is about 22156.4583812486. The cubic root of 490908648 is about 788.8605310561.

The spelling of 490908648 in words is "four hundred ninety million, nine hundred eight thousand, six hundred forty-eight".