994007808 has 144 divisors (see below), whose sum is σ = 3034931200. Its totient is φ = 320578560.

The previous prime is 994007801. The next prime is 994007809. The reversal of 994007808 is 808700499.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (994007801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211953 + ... + 216591.

Almost surely, 2^994007808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 994007808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1517465600).

994007808 is an abundant number, since it is smaller than the sum of its proper divisors (2040923392).

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

994007808 is a wasteful number, since it uses less digits than its factorization.

994007808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4695 (or 4675 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 994007808 is about 31527.8893679866. The cubic root of 994007808 is about 997.9985997359.

The spelling of 994007808 in words is "nine hundred ninety-four million, seven thousand, eight hundred eight".