2243043012 has 120 divisors (see below), whose sum is σ = 6163813376. Its totient is φ = 634785984.

The previous prime is 2243042999. The next prime is 2243043031. The reversal of 2243043012 is 2103403422.

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 2243043012.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3658818 + ... + 3659430.

Almost surely, 2^2243043012 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 2243043012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3081906688).

2243043012 is an abundant number, since it is smaller than the sum of its proper divisors (3920770364).

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

2243043012 is a wasteful number, since it uses less digits than its factorization.

2243043012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2243043012 is about 47360.7750358881. The cubic root of 2243043012 is about 1309.0187496719.

Adding to 2243043012 its reverse (2103403422), we get a palindrome (4346446434).

The spelling of 2243043012 in words is "two billion, two hundred forty-three million, forty-three thousand, twelve".