490867321 has 8 divisors (see below), whose sum is σ = 561189440. Its totient is φ = 420594768.

The previous prime is 490867313. The next prime is 490867339. The reversal of 490867321 is 123768094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 490867321 - 2³ = 490867313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490867381) by changing a digit.

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, 12055 + ... + 33571.

It is an arithmetic number, because the mean of its divisors is an integer number (70148680).

Almost surely, 2^490867321 is an apocalyptic number.

It is an amenable number.

490867321 is a deficient number, since it is larger than the sum of its proper divisors (70322119).

490867321 is a wasteful number, since it uses less digits than its factorization.

490867321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24783.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 490867321 is about 22155.5257441569. The cubic root of 490867321 is about 788.8383937711.

The spelling of 490867321 in words is "four hundred ninety million, eight hundred sixty-seven thousand, three hundred twenty-one".