994455636 has 12 divisors (see below), whose sum is σ = 2320396512. Its totient is φ = 331485208.

The previous prime is 994455599. The next prime is 994455641. The reversal of 994455636 is 636554499.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41435640 + ... + 41435663.

It is an arithmetic number, because the mean of its divisors is an integer number (193366376).

Almost surely, 2^994455636 is an apocalyptic number.

It is an amenable number.

994455636 is an abundant number, since it is smaller than the sum of its proper divisors (1325940876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

994455636 is a wasteful number, since it uses less digits than its factorization.

994455636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82871310 (or 82871308 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 51.

The square root of 994455636 is about 31534.9906611687. The cubic root of 994455636 is about 998.1484525546.

The spelling of 994455636 in words is "nine hundred ninety-four million, four hundred fifty-five thousand, six hundred thirty-six".