43224642 has 24 divisors (see below), whose sum is σ = 99163116. Its totient is φ = 13560576.

The previous prime is 43224641. The next prime is 43224653. The reversal of 43224642 is 24642234.

It can be written as a sum of positive squares in 2 ways, for example, as 42889401 + 335241 = 6549^2 + 579^2 .

It is not an unprimeable number, because it can be changed into a prime (43224641) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 70323 + ... + 70934.

Almost surely, 2^43224642 is an apocalyptic number.

43224642 is an abundant number, since it is smaller than the sum of its proper divisors (55938474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43224642 is a wasteful number, since it uses less digits than its factorization.

43224642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141282 (or 141279 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 43224642 is about 6574.5450032683. The cubic root of 43224642 is about 350.9488322423.

Adding to 43224642 its reverse (24642234), we get a palindrome (67866876).

The spelling of 43224642 in words is "forty-three million, two hundred twenty-four thousand, six hundred forty-two".