494541409 has 4 divisors (see below), whose sum is σ = 506042416. Its totient is φ = 483040404.

The previous prime is 494541403. The next prime is 494541427. The reversal of 494541409 is 904145494.

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 494541409 - 2³ = 494541401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494541401) 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, 5750439 + ... + 5750524.

It is an arithmetic number, because the mean of its divisors is an integer number (126510604).

Almost surely, 2^494541409 is an apocalyptic number.

It is an amenable number.

494541409 is a deficient number, since it is larger than the sum of its proper divisors (11501007).

494541409 is a wasteful number, since it uses less digits than its factorization.

494541409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11501006.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 494541409 is about 22238.2870068717. The cubic root of 494541409 is about 790.8016266146.

The spelling of 494541409 in words is "four hundred ninety-four million, five hundred forty-one thousand, four hundred nine".