994324423500 has 192 divisors, whose sum is σ = 3218552064000. Its totient is φ = 265041086400.

The previous prime is 994324423481. The next prime is 994324423511. The reversal of 994324423500 is 5324423499.

994324423500 is a `hidden beast` number, since 9 + 94 + 32 + 4 + 4 + 23 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34802221 + ... + 34830779.

It is an arithmetic number, because the mean of its divisors is an integer number (16763292000).

Almost surely, 2^994324423500 is an apocalyptic number.

994324423500 is a gapful number since it is divisible by the number (90) 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 994324423500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1609276032000).

994324423500 is an abundant number, since it is smaller than the sum of its proper divisors (2224227640500).

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

994324423500 is a wasteful number, since it uses less digits than its factorization.

994324423500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31166 (or 31148 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

Adding to 994324423500 its reverse (5324423499), we get a palindrome (999648846999).

The spelling of 994324423500 in words is "nine hundred ninety-four billion, three hundred twenty-four million, four hundred twenty-three thousand, five hundred".