43054042 has 4 divisors (see below), whose sum is σ = 64581066. Its totient is φ = 21527020.

The previous prime is 43054027. The next prime is 43054043. The reversal of 43054042 is 24045034.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 42784681 + 269361 = 6541^2 + 519^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (43054043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10763509 + ... + 10763512.

Almost surely, 2^43054042 is an apocalyptic number.

43054042 is a deficient number, since it is larger than the sum of its proper divisors (21527024).

43054042 is a wasteful number, since it uses less digits than its factorization.

43054042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21527023.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 43054042 is about 6561.5578942809. The cubic root of 43054042 is about 350.4865125325.

Adding to 43054042 its reverse (24045034), we get a palindrome (67099076).

The spelling of 43054042 in words is "forty-three million, fifty-four thousand, forty-two".