490240321 has 8 divisors (see below), whose sum is σ = 502675488. Its totient is φ = 477828000.

The previous prime is 490240277. The next prime is 490240327. The reversal of 490240321 is 123042094.

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 490240321 - 2¹⁹ = 489716033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490240327) 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, 42906 + ... + 53116.

It is an arithmetic number, because the mean of its divisors is an integer number (62834436).

Almost surely, 2^490240321 is an apocalyptic number.

490240321 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

490240321 is a deficient number, since it is larger than the sum of its proper divisors (12435167).

490240321 is a wasteful number, since it uses less digits than its factorization.

490240321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11423.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 490240321 is about 22141.3712538316. The cubic root of 490240321 is about 788.5023814440.

The spelling of 490240321 in words is "four hundred ninety million, two hundred forty thousand, three hundred twenty-one".