4400043012 has 24 divisors (see below), whose sum is σ = 11407519200. Its totient is φ = 1466680968.

The previous prime is 4400042963. The next prime is 4400043023. The reversal of 4400043012 is 2103400044.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 20370462 + ... + 20370677.

It is an arithmetic number, because the mean of its divisors is an integer number (475313300).

Almost surely, 2^4400043012 is an apocalyptic number.

It is an amenable number.

4400043012 is an abundant number, since it is smaller than the sum of its proper divisors (7007476188).

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

4400043012 is a wasteful number, since it uses less digits than its factorization.

4400043012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40741152 (or 40741144 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4400043012 is about 66332.8200214645. The cubic root of 4400043012 is about 1638.6478806758.

Adding to 4400043012 its reverse (2103400044), we get a palindrome (6503443056).

The spelling of 4400043012 in words is "four billion, four hundred million, forty-three thousand, twelve".