43043021442 has 48 divisors (see below), whose sum is σ = 93521191608. Its totient is φ = 14307528960.

The previous prime is 43043021423. The next prime is 43043021447. The reversal of 43043021442 is 24412034034.

It is a happy number.

43043021442 is a `hidden beast` number, since 4 + 304 + 302 + 14 + 42 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 25542112761 + 17500908681 = 159819^2 + 132291^2 .

It is not an unprimeable number, because it can be changed into a prime (43043021447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19991038 + ... + 19993190.

Almost surely, 2^43043021442 is an apocalyptic number.

43043021442 is an abundant number, since it is smaller than the sum of its proper divisors (50478170166).

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

43043021442 is a wasteful number, since it uses less digits than its factorization.

43043021442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4755 (or 4752 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 43043021442 its reverse (24412034034), we get a palindrome (67455055476).

The spelling of 43043021442 in words is "forty-three billion, forty-three million, twenty-one thousand, four hundred forty-two".