40210223 has 2 divisors, whose sum is σ = 40210224. Its totient is φ = 40210222.

The previous prime is 40210207. The next prime is 40210237. The reversal of 40210223 is 32201204.

It is an a-pointer prime, because the next prime (40210237) can be obtained adding 40210223 to its sum of digits (14).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40210223 - 2⁴ = 40210207 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 40210198 and 40210207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40210523) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20105111 + 20105112.

It is an arithmetic number, because the mean of its divisors is an integer number (20105112).

Almost surely, 2^40210223 is an apocalyptic number.

40210223 is a deficient number, since it is larger than the sum of its proper divisors (1).

40210223 is an equidigital number, since it uses as much as digits as its factorization.

40210223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 40210223 is about 6341.1531285721. The cubic root of 40210223 is about 342.5932699257.

Adding to 40210223 its reverse (32201204), we get a palindrome (72411427).

The spelling of 40210223 in words is "forty million, two hundred ten thousand, two hundred twenty-three".