43442242 has 16 divisors (see below), whose sum is σ = 69136632. Its totient is φ = 20401920.

The previous prime is 43442233. The next prime is 43442249. The reversal of 43442242 is 24224434.

It can be written as a sum of positive squares in 4 ways, for example, as 43441281 + 961 = 6591^2 + 31^2 .

It is not an unprimeable number, because it can be changed into a prime (43442249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21508 + ... + 23440.

Almost surely, 2^43442242 is an apocalyptic number.

43442242 is a deficient number, since it is larger than the sum of its proper divisors (25694390).

43442242 is a wasteful number, since it uses less digits than its factorization.

43442242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613.

The product of its digits is 6144, while the sum is 25.

The square root of 43442242 is about 6591.0729020395. The cubic root of 43442242 is about 351.5367582680.

Adding to 43442242 its reverse (24224434), we get a palindrome (67666676).

The spelling of 43442242 in words is "forty-three million, four hundred forty-two thousand, two hundred forty-two".