199424300000 has 144 divisors (see below), whose sum is σ = 507668757120. Its totient is φ = 77017920000.

The previous prime is 199424299993. The next prime is 199424300027. The reversal of 199424300000 is 3424991.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 199424300000.

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, 2865617 + ... + 2934383.

It is an arithmetic number, because the mean of its divisors is an integer number (3525477480).

Almost surely, 2^199424300000 is an apocalyptic number.

199424300000 is a gapful number since it is divisible by the number (10) 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 199424300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253834378560).

199424300000 is an abundant number, since it is smaller than the sum of its proper divisors (308244457120).

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

199424300000 is an frugal number, since it uses more digits than its factorization.

199424300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68831 (or 68803 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

Adding to 199424300000 its reverse (3424991), we get a palindrome (199427724991).

The spelling of 199424300000 in words is "one hundred ninety-nine billion, four hundred twenty-four million, three hundred thousand".