490284857 has 8 divisors (see below), whose sum is σ = 494841600. Its totient is φ = 485749440.

The previous prime is 490284853. The next prime is 490284869. The reversal of 490284857 is 758482094.

It is a happy number.

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 490284857 - 2² = 490284853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490284853) 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, 42848 + ... + 53070.

It is an arithmetic number, because the mean of its divisors is an integer number (61855200).

Almost surely, 2^490284857 is an apocalyptic number.

It is an amenable number.

490284857 is a deficient number, since it is larger than the sum of its proper divisors (4556743).

490284857 is a wasteful number, since it uses less digits than its factorization.

490284857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10663.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 490284857 is about 22142.3769500928. The cubic root of 490284857 is about 788.5262579505.

The spelling of 490284857 in words is "four hundred ninety million, two hundred eighty-four thousand, eight hundred fifty-seven".