43222169 has 12 divisors (see below), whose sum is σ = 46323504. Its totient is φ = 40313592.

The previous prime is 43222163. The next prime is 43222183. The reversal of 43222169 is 96122234.

It is a de Polignac number, because none of the positive numbers 2^k-43222169 is a prime.

It is a super-2 number, since 2×43222169² = 3736311786129122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43222163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23294 + ... + 25080.

It is an arithmetic number, because the mean of its divisors is an integer number (3860292).

Almost surely, 2^43222169 is an apocalyptic number.

It is an amenable number.

43222169 is a deficient number, since it is larger than the sum of its proper divisors (3101335).

43222169 is a wasteful number, since it uses less digits than its factorization.

43222169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892 (or 1873 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 43222169 is about 6574.3569267268. The cubic root of 43222169 is about 350.9421392004.

The spelling of 43222169 in words is "forty-three million, two hundred twenty-two thousand, one hundred sixty-nine".