490944505 has 8 divisors (see below), whose sum is σ = 589259592. Its totient is φ = 392671488.

The previous prime is 490944463. The next prime is 490944511. The reversal of 490944505 is 505449094.

It can be written as a sum of positive squares in 4 ways, for example, as 56169 + 490888336 = 237^2 + 22156^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490944505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27969 + ... + 42001.

It is an arithmetic number, because the mean of its divisors is an integer number (73657449).

Almost surely, 2^490944505 is an apocalyptic number.

It is an amenable number.

490944505 is a deficient number, since it is larger than the sum of its proper divisors (98315087).

490944505 is a wasteful number, since it uses less digits than its factorization.

490944505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21035.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 490944505 is about 22157.2675436300. The cubic root of 490944505 is about 788.8797372659.

The spelling of 490944505 in words is "four hundred ninety million, nine hundred forty-four thousand, five hundred five".