994353409 has 16 divisors (see below), whose sum is σ = 1206448128. Its totient is φ = 800036352.

The previous prime is 994353407. The next prime is 994353419. The reversal of 994353409 is 904353499.

It is a cyclic number.

It is not a de Polignac number, because 994353409 - 2¹ = 994353407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (994353403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34669 + ... + 56485.

It is an arithmetic number, because the mean of its divisors is an integer number (75403008).

Almost surely, 2^994353409 is an apocalyptic number.

It is an amenable number.

994353409 is a deficient number, since it is larger than the sum of its proper divisors (212094719).

994353409 is a wasteful number, since it uses less digits than its factorization.

994353409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22224.

The product of its (nonzero) digits is 524880, while the sum is 46.

The square root of 994353409 is about 31533.3697691826. The cubic root of 994353409 is about 998.1142491791.

The spelling of 994353409 in words is "nine hundred ninety-four million, three hundred fifty-three thousand, four hundred nine".