43442042012 has 12 divisors (see below), whose sum is σ = 80495548560. Its totient is φ = 20443313856.

The previous prime is 43442042009. The next prime is 43442042027. The reversal of 43442042012 is 21024024434.

It is a happy number.

43442042012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×43442042012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319426712 + ... + 319426847.

It is an arithmetic number, because the mean of its divisors is an integer number (6707962380).

Almost surely, 2^43442042012 is an apocalyptic number.

It is an amenable number.

43442042012 is a deficient number, since it is larger than the sum of its proper divisors (37053506548).

43442042012 is a wasteful number, since it uses less digits than its factorization.

43442042012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638853580 (or 638853578 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 43442042012 its reverse (21024024434), we get a palindrome (64466066446).

The spelling of 43442042012 in words is "forty-three billion, four hundred forty-two million, forty-two thousand, twelve".