490740836 has 24 divisors (see below), whose sum is σ = 911395800. Its totient is φ = 230408192.

The previous prime is 490740823. The next prime is 490740863. The reversal of 490740836 is 638047094.

It can be written as a sum of positive squares in 4 ways, for example, as 82700836 + 408040000 = 9094^2 + 20200^2 .

It is a junction number, because it is equal to n+sod(n) for n = 490740793 and 490740802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22496 + ... + 38568.

It is an arithmetic number, because the mean of its divisors is an integer number (37974825).

Almost surely, 2^490740836 is an apocalyptic number.

It is an amenable number.

490740836 is a deficient number, since it is larger than the sum of its proper divisors (420654964).

490740836 is a wasteful number, since it uses less digits than its factorization.

490740836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16543 (or 16541 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 490740836 is about 22152.6710804815. The cubic root of 490740836 is about 788.7706328975.

The spelling of 490740836 in words is "four hundred ninety million, seven hundred forty thousand, eight hundred thirty-six".