494852309 has 4 divisors (see below), whose sum is σ = 565545504. Its totient is φ = 424159116.

The previous prime is 494852297. The next prime is 494852333. The reversal of 494852309 is 903258494.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 494852309 - 2¹² = 494848213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 494852309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494822309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35346587 + ... + 35346600.

It is an arithmetic number, because the mean of its divisors is an integer number (141386376).

Almost surely, 2^494852309 is an apocalyptic number.

It is an amenable number.

494852309 is a deficient number, since it is larger than the sum of its proper divisors (70693195).

494852309 is an equidigital number, since it uses as much as digits as its factorization.

494852309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70693194.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 494852309 is about 22245.2761052768. The cubic root of 494852309 is about 790.9673078687.

The spelling of 494852309 in words is "four hundred ninety-four million, eight hundred fifty-two thousand, three hundred nine".