43546042 has 4 divisors (see below), whose sum is σ = 65319066. Its totient is φ = 21773020.

The previous prime is 43546037. The next prime is 43546051. The reversal of 43546042 is 24064534.

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., 36832761 + 6713281 = 6069^2 + 2591^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 43546042.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10886509 + ... + 10886512.

Almost surely, 2^43546042 is an apocalyptic number.

43546042 is a deficient number, since it is larger than the sum of its proper divisors (21773024).

43546042 is a wasteful number, since it uses less digits than its factorization.

43546042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21773023.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 43546042 is about 6598.9424910360. The cubic root of 43546042 is about 351.8165204680.

The spelling of 43546042 in words is "forty-three million, five hundred forty-six thousand, forty-two".