40000223 has 2 divisors, whose sum is σ = 40000224. Its totient is φ = 40000222.

The previous prime is 40000217. The next prime is 40000231. The reversal of 40000223 is 32200004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40000223 - 2⁶ = 40000159 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40000253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20000111 + 20000112.

It is an arithmetic number, because the mean of its divisors is an integer number (20000112).

Almost surely, 2^40000223 is an apocalyptic number.

40000223 is a deficient number, since it is larger than the sum of its proper divisors (1).

40000223 is an equidigital number, since it uses as much as digits as its factorization.

40000223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 40000223 is about 6324.5729500101. The cubic root of 40000223 is about 341.9958248752.

Adding to 40000223 its reverse (32200004), we get a palindrome (72200227).

The spelling of 40000223 in words is "forty million, two hundred twenty-three", and thus it is an aban number.