43421222 has 16 divisors (see below), whose sum is σ = 70465920. Its totient is φ = 19948032.

The previous prime is 43421221. The next prime is 43421233. The reversal of 43421222 is 22212434.

It is a junction number, because it is equal to n+sod(n) for n = 43421194 and 43421203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43421221) 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, 2054 + ... + 9542.

It is an arithmetic number, because the mean of its divisors is an integer number (4404120).

Almost surely, 2^43421222 is an apocalyptic number.

43421222 is a deficient number, since it is larger than the sum of its proper divisors (27044698).

43421222 is a wasteful number, since it uses less digits than its factorization.

43421222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7727.

The product of its digits is 768, while the sum is 20.

The square root of 43421222 is about 6589.4781280463. The cubic root of 43421222 is about 351.4800508296.

Adding to 43421222 its reverse (22212434), we get a palindrome (65633656).

The spelling of 43421222 in words is "forty-three million, four hundred twenty-one thousand, two hundred twenty-two".