43072222 has 32 divisors (see below), whose sum is σ = 68745600. Its totient is φ = 20217600.

The previous prime is 43072217. The next prime is 43072229. The reversal of 43072222 is 22227034.

It is a junction number, because it is equal to n+sod(n) for n = 43072193 and 43072202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43072229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395104 + ... + 395212.

It is an arithmetic number, because the mean of its divisors is an integer number (2148300).

Almost surely, 2^43072222 is an apocalyptic number.

43072222 is a deficient number, since it is larger than the sum of its proper divisors (25673378).

43072222 is a wasteful number, since it uses less digits than its factorization.

43072222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 43072222 is about 6562.9430898035. The cubic root of 43072222 is about 350.5358377360.

Adding to 43072222 its reverse (22227034), we get a palindrome (65299256).

The spelling of 43072222 in words is "forty-three million, seventy-two thousand, two hundred twenty-two".