994393500 has 384 divisors, whose sum is σ = 3346237440. Its totient is φ = 228096000.

The previous prime is 994393487. The next prime is 994393501. The reversal of 994393500 is 5393499.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994393501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 24253480 + ... + 24253520.

It is an arithmetic number, because the mean of its divisors is an integer number (8714160).

Almost surely, 2^994393500 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 994393500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1673118720).

994393500 is an abundant number, since it is smaller than the sum of its proper divisors (2351843940).

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

994393500 is a wasteful number, since it uses less digits than its factorization.

994393500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 42.

The square root of 994393500 is about 31534.0054544297. The cubic root of 994393500 is about 998.1276632095.

The spelling of 994393500 in words is "nine hundred ninety-four million, three hundred ninety-three thousand, five hundred".