494039530 has 8 divisors (see below), whose sum is σ = 889271172. Its totient is φ = 197615808.

The previous prime is 494039519. The next prime is 494039537. The reversal of 494039530 is 35930494.

It is a Cunningham number, because it is equal to 22227²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 494039529 + 1 = 22227^2 + 1^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 494039530.

It is not an unprimeable number, because it can be changed into a prime (494039537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24701967 + ... + 24701986.

Almost surely, 2^494039530 is an apocalyptic number.

494039530 is a deficient number, since it is larger than the sum of its proper divisors (395231642).

494039530 is a wasteful number, since it uses less digits than its factorization.

494039530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49403960.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 494039530 is about 22227.0000224952. Note that the first 4 decimals coincide. The cubic root of 494039530 is about 790.5340244438.

The spelling of 494039530 in words is "four hundred ninety-four million, thirty-nine thousand, five hundred thirty".