43043042042 has 32 divisors (see below), whose sum is σ = 86688088704. Its totient is φ = 15480014400.

The previous prime is 43043041837. The next prime is 43043042083. The reversal of 43043042042 is 24024034034.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10748009 + ... + 10752012.

It is an arithmetic number, because the mean of its divisors is an integer number (2709002772).

Almost surely, 2^43043042042 is an apocalyptic number.

43043042042 is an abundant number, since it is smaller than the sum of its proper divisors (43645046662).

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

43043042042 is a wasteful number, since it uses less digits than its factorization.

43043042042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21500054.

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 43043042042 its reverse (24024034034), we get a palindrome (67067076076).

The spelling of 43043042042 in words is "forty-three billion, forty-three million, forty-two thousand, forty-two".