494190009 has 12 divisors (see below), whose sum is σ = 714023700. Its totient is φ = 329370624.

The previous prime is 494189989. The next prime is 494190023. The reversal of 494190009 is 900091494.

It can be written as a sum of positive squares in 2 ways, for example, as 209525625 + 284664384 = 14475^2 + 16872^2 .

It is not a de Polignac number, because 494190009 - 2¹¹ = 494187961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (494170009) 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 11 ways as a sum of consecutive naturals, for example, 56097 + ... + 64305.

It is an arithmetic number, because the mean of its divisors is an integer number (59501975).

Almost surely, 2^494190009 is an apocalyptic number.

It is an amenable number.

494190009 is a deficient number, since it is larger than the sum of its proper divisors (219833691).

494190009 is a wasteful number, since it uses less digits than its factorization.

494190009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14904 (or 14901 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 494190009 is about 22230.3848144831. The cubic root of 494190009 is about 790.6142789487.

The spelling of 494190009 in words is "four hundred ninety-four million, one hundred ninety thousand, nine".