243450200 has 192 divisors, whose sum is σ = 701472960. Its totient is φ = 76677120.

The previous prime is 243450197. The next prime is 243450227. The reversal of 243450200 is 2054342.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1261304 + ... + 1261496.

It is an arithmetic number, because the mean of its divisors is an integer number (3653505).

Almost surely, 2^243450200 is an apocalyptic number.

243450200 is a gapful number since it is divisible by the number (20) 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 243450200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350736480).

243450200 is an abundant number, since it is smaller than the sum of its proper divisors (458022760).

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

243450200 is a wasteful number, since it uses less digits than its factorization.

243450200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 243450200 is about 15602.8907578051. The cubic root of 243450200 is about 624.4102810789.

The spelling of 243450200 in words is "two hundred forty-three million, four hundred fifty thousand, two hundred".