43442043 has 4 divisors (see below), whose sum is σ = 57922728. Its totient is φ = 28961360.

The previous prime is 43442011. The next prime is 43442051. The reversal of 43442043 is 34024434.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43442043 - 2⁵ = 43442011 is a prime.

It is a super-2 number, since 2×43442043² = 3774422200027698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43442093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7240338 + ... + 7240343.

It is an arithmetic number, because the mean of its divisors is an integer number (14480682).

Almost surely, 2^43442043 is an apocalyptic number.

43442043 is a deficient number, since it is larger than the sum of its proper divisors (14480685).

43442043 is a wasteful number, since it uses less digits than its factorization.

43442043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14480684.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 43442043 is about 6591.0578058457. The cubic root of 43442043 is about 351.5362214946.

Adding to 43442043 its reverse (34024434), we get a palindrome (77466477).

The spelling of 43442043 in words is "forty-three million, four hundred forty-two thousand, forty-three".