43330442 has 4 divisors (see below), whose sum is σ = 64995666. Its totient is φ = 21665220.

The previous prime is 43330439. The next prime is 43330471. The reversal of 43330442 is 24403334.

It is a happy number.

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., 34798201 + 8532241 = 5899^2 + 2921^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10832609 + ... + 10832612.

Almost surely, 2^43330442 is an apocalyptic number.

43330442 is a deficient number, since it is larger than the sum of its proper divisors (21665224).

43330442 is a wasteful number, since it uses less digits than its factorization.

43330442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21665223.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 43330442 is about 6582.5862698487. The cubic root of 43330442 is about 351.2349355038.

Adding to 43330442 its reverse (24403334), we get a palindrome (67733776).

The spelling of 43330442 in words is "forty-three million, three hundred thirty thousand, four hundred forty-two".