43331642 has 8 divisors (see below), whose sum is σ = 65594100. Its totient is φ = 21466944.

The previous prime is 43331641. The next prime is 43331669. The reversal of 43331642 is 24613334.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42523441 + 808201 = 6521^2 + 899^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (43331641) 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 3 ways as a sum of consecutive naturals, for example, 99167 + ... + 99602.

Almost surely, 2^43331642 is an apocalyptic number.

43331642 is a deficient number, since it is larger than the sum of its proper divisors (22262458).

43331642 is a wasteful number, since it uses less digits than its factorization.

43331642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198880.

The product of its digits is 5184, while the sum is 26.

The square root of 43331642 is about 6582.6774188016. The cubic root of 43331642 is about 351.2381778589.

Adding to 43331642 its reverse (24613334), we get a palindrome (67944976).

The spelling of 43331642 in words is "forty-three million, three hundred thirty-one thousand, six hundred forty-two".