490305938 has 8 divisors (see below), whose sum is σ = 735664188. Its totient is φ = 245084544.

The previous prime is 490305931. The next prime is 490305947. The reversal of 490305938 is 839503094.

It can be written as a sum of positive squares in 2 ways, for example, as 479303449 + 11002489 = 21893^2 + 3317^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 490305895 and 490305904.

It is not an unprimeable number, because it can be changed into a prime (490305931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24731 + ... + 39902.

Almost surely, 2^490305938 is an apocalyptic number.

490305938 is a deficient number, since it is larger than the sum of its proper divisors (245358250).

490305938 is a wasteful number, since it uses less digits than its factorization.

490305938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68428.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 490305938 is about 22142.8529778798. The cubic root of 490305938 is about 788.5375593288.

The spelling of 490305938 in words is "four hundred ninety million, three hundred five thousand, nine hundred thirty-eight".