243444012 has 96 divisors (see below), whose sum is σ = 692536320. Its totient is φ = 64972800.

The previous prime is 243444001. The next prime is 243444059. The reversal of 243444012 is 210444342.

It is a happy number.

It is a super-2 number, since 2×243444012² = 118529973957312288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215064 + ... + 216192.

It is an arithmetic number, because the mean of its divisors is an integer number (7213920).

Almost surely, 2^243444012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243444012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346268160).

243444012 is an abundant number, since it is smaller than the sum of its proper divisors (449092308).

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

243444012 is a wasteful number, since it uses less digits than its factorization.

243444012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 243444012 is about 15602.6924599570. The cubic root of 243444012 is about 624.4049906286.

Adding to 243444012 its reverse (210444342), we get a palindrome (453888354).

The spelling of 243444012 in words is "two hundred forty-three million, four hundred forty-four thousand, twelve".