43522442 has 8 divisors (see below), whose sum is σ = 65313732. Its totient is φ = 21751200.

The previous prime is 43522439. The next prime is 43522459. The reversal of 43522442 is 24422534.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42915601 + 606841 = 6551^2 + 779^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2942 + ... + 9782.

Almost surely, 2^43522442 is an apocalyptic number.

43522442 is a deficient number, since it is larger than the sum of its proper divisors (21791290).

43522442 is a wasteful number, since it uses less digits than its factorization.

43522442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10024.

The product of its digits is 7680, while the sum is 26.

The square root of 43522442 is about 6597.1540833908. The cubic root of 43522442 is about 351.7529527293.

Adding to 43522442 its reverse (24422534), we get a palindrome (67944976).

The spelling of 43522442 in words is "forty-three million, five hundred twenty-two thousand, four hundred forty-two".