43442212 has 24 divisors (see below), whose sum is σ = 84867552. Its totient is φ = 19286400.

The previous prime is 43442171. The next prime is 43442213. The reversal of 43442212 is 21224434.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (43442213) 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, 9589 + ... + 13372.

It is an arithmetic number, because the mean of its divisors is an integer number (3536148).

Almost surely, 2^43442212 is an apocalyptic number.

It is an amenable number.

43442212 is a deficient number, since it is larger than the sum of its proper divisors (41425340).

43442212 is a wasteful number, since it uses less digits than its factorization.

43442212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23019 (or 23017 counting only the distinct ones).

The product of its digits is 1536, while the sum is 22.

The square root of 43442212 is about 6591.0706262336. The cubic root of 43442212 is about 351.5366773475.

Adding to 43442212 its reverse (21224434), we get a palindrome (64666646).

It can be divided in two parts, 434422 and 12, that added together give a palindrome (434434).

The spelling of 43442212 in words is "forty-three million, four hundred forty-two thousand, two hundred twelve".