43242242 has 4 divisors (see below), whose sum is σ = 64863366. Its totient is φ = 21621120.

The previous prime is 43242217. The next prime is 43242259. The reversal of 43242242 is 24224234.

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., 35295481 + 7946761 = 5941^2 + 2819^2 .

It is a plaindrome in base 11.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10810559 + ... + 10810562.

Almost surely, 2^43242242 is an apocalyptic number.

43242242 is a deficient number, since it is larger than the sum of its proper divisors (21621124).

43242242 is a wasteful number, since it uses less digits than its factorization.

43242242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21621123.

The product of its digits is 3072, while the sum is 23.

The square root of 43242242 is about 6575.8833627126. The cubic root of 43242242 is about 350.9964583263.

Adding to 43242242 its reverse (24224234), we get a palindrome (67466476).

The spelling of 43242242 in words is "forty-three million, two hundred forty-two thousand, two hundred forty-two".