494261209 has 16 divisors (see below), whose sum is σ = 543916800. Its totient is φ = 446374656.

The previous prime is 494261177. The next prime is 494261219. The reversal of 494261209 is 902162494.

It is a happy number.

It is not a de Polignac number, because 494261209 - 2⁵ = 494261177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494261219) 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 15 ways as a sum of consecutive naturals, for example, 113922 + ... + 118180.

It is an arithmetic number, because the mean of its divisors is an integer number (33994800).

Almost surely, 2^494261209 is an apocalyptic number.

It is an amenable number.

494261209 is a deficient number, since it is larger than the sum of its proper divisors (49655591).

494261209 is a wasteful number, since it uses less digits than its factorization.

494261209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4464.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 494261209 is about 22231.9861685815. The cubic root of 494261209 is about 790.6522461492.

The spelling of 494261209 in words is "four hundred ninety-four million, two hundred sixty-one thousand, two hundred nine".