43042012 has 24 divisors (see below), whose sum is σ = 83737472. Its totient is φ = 19224000.

The previous prime is 43042009. The next prime is 43042019. The reversal of 43042012 is 21024034.

It is a super-2 number, since 2×43042012² = 3705229594016288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43042019) 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 7 ways as a sum of consecutive naturals, for example, 11739 + ... + 14962.

Almost surely, 2^43042012 is an apocalyptic number.

It is an amenable number.

43042012 is a deficient number, since it is larger than the sum of its proper divisors (40695460).

43042012 is a wasteful number, since it uses less digits than its factorization.

43042012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26749 (or 26747 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 43042012 is about 6560.6411272070. The cubic root of 43042012 is about 350.4538656131.

Adding to 43042012 its reverse (21024034), we get a palindrome (64066046).

The spelling of 43042012 in words is "forty-three million, forty-two thousand, twelve".