994409856 has 192 divisors, whose sum is σ = 3157736400. Its totient is φ = 297861120.

The previous prime is 994409833. The next prime is 994409863. The reversal of 994409856 is 658904499.

994409856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1228780 + ... + 1229588.

Almost surely, 2^994409856 is an apocalyptic number.

994409856 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 994409856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1578868200).

994409856 is an abundant number, since it is smaller than the sum of its proper divisors (2163326544).

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

994409856 is a wasteful number, since it uses less digits than its factorization.

994409856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937 (or 922 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 994409856 is about 31534.2647924444. The cubic root of 994409856 is about 998.1331356530.

The spelling of 994409856 in words is "nine hundred ninety-four million, four hundred nine thousand, eight hundred fifty-six".