490820812 has 24 divisors (see below), whose sum is σ = 885931200. Its totient is φ = 237801600.

The previous prime is 490820789. The next prime is 490820839. The reversal of 490820812 is 218028094.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6064 + ... + 31912.

It is an arithmetic number, because the mean of its divisors is an integer number (36913800).

Almost surely, 2^490820812 is an apocalyptic number.

It is an amenable number.

490820812 is a deficient number, since it is larger than the sum of its proper divisors (395110388).

490820812 is a wasteful number, since it uses less digits than its factorization.

490820812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26001 (or 25999 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 490820812 is about 22154.4761165774. The cubic root of 490820812 is about 788.8134792018.

The spelling of 490820812 in words is "four hundred ninety million, eight hundred twenty thousand, eight hundred twelve".