243200244 has 24 divisors (see below), whose sum is σ = 648534208. Its totient is φ = 69485760.

The previous prime is 243200219. The next prime is 243200261. The reversal of 243200244 is 442002342.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 243200244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1447537 + ... + 1447704.

Almost surely, 2^243200244 is an apocalyptic number.

It is an amenable number.

243200244 is an abundant number, since it is smaller than the sum of its proper divisors (405333964).

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

243200244 is a wasteful number, since it uses less digits than its factorization.

243200244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895255 (or 2895253 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 243200244 is about 15594.8787747773. The cubic root of 243200244 is about 624.1965090329.

Adding to 243200244 its reverse (442002342), we get a palindrome (685202586).

The spelling of 243200244 in words is "two hundred forty-three million, two hundred thousand, two hundred forty-four".