41223209 has 4 divisors (see below), whose sum is σ = 41260116. Its totient is φ = 41186304.

The previous prime is 41223167. The next prime is 41223229. The reversal of 41223209 is 90232214.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90232214 = 2 ⋅45116107.

It can be written as a sum of positive squares in 2 ways, for example, as 35366809 + 5856400 = 5947^2 + 2420^2 .

It is a cyclic number.

It is not a de Polignac number, because 41223209 - 2¹⁶ = 41157673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41223229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16724 + ... + 19029.

It is an arithmetic number, because the mean of its divisors is an integer number (10315029).

Almost surely, 2^41223209 is an apocalyptic number.

It is an amenable number.

41223209 is a deficient number, since it is larger than the sum of its proper divisors (36907).

41223209 is a wasteful number, since it uses less digits than its factorization.

41223209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36906.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 41223209 is about 6420.5302740506. The cubic root of 41223209 is about 345.4463424120.

The spelling of 41223209 in words is "forty-one million, two hundred twenty-three thousand, two hundred nine".