43020242 has 4 divisors (see below), whose sum is σ = 64530366. Its totient is φ = 21510120.

The previous prime is 43020227. The next prime is 43020247. The reversal of 43020242 is 24202034.

43020242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 23030401 + 19989841 = 4799^2 + 4471^2 .

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 43020242.

It is not an unprimeable number, because it can be changed into a prime (43020247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10755059 + ... + 10755062.

Almost surely, 2^43020242 is an apocalyptic number.

43020242 is a deficient number, since it is larger than the sum of its proper divisors (21510124).

43020242 is a wasteful number, since it uses less digits than its factorization.

43020242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21510123.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 43020242 is about 6558.9817807340. The cubic root of 43020242 is about 350.3947708904.

Adding to 43020242 its reverse (24202034), we get a palindrome (67222276).

The spelling of 43020242 in words is "forty-three million, twenty thousand, two hundred forty-two".