243873700 has 72 divisors (see below), whose sum is σ = 609460992. Its totient is φ = 82970880.

The previous prime is 243873689. The next prime is 243873701. The reversal of 243873700 is 7378342.

243873700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (243873701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94629 + ... + 97171.

It is an arithmetic number, because the mean of its divisors is an integer number (8464736).

Almost surely, 2^243873700 is an apocalyptic number.

243873700 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 243873700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304730496).

243873700 is an abundant number, since it is smaller than the sum of its proper divisors (365587292).

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

243873700 is a wasteful number, since it uses less digits than its factorization.

243873700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2701 (or 2694 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 243873700 is about 15616.4560640371. The cubic root of 243873700 is about 624.7721409385.

The spelling of 243873700 in words is "two hundred forty-three million, eight hundred seventy-three thousand, seven hundred".