40222223 has 2 divisors, whose sum is σ = 40222224. Its totient is φ = 40222222.

The previous prime is 40222207. The next prime is 40222249. The reversal of 40222223 is 32222204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40222223 - 2⁴ = 40222207 is a prime.

It is a Sophie Germain prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40222253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20111111 + 20111112.

It is an arithmetic number, because the mean of its divisors is an integer number (20111112).

Almost surely, 2^40222223 is an apocalyptic number.

40222223 is a deficient number, since it is larger than the sum of its proper divisors (1).

40222223 is an equidigital number, since it uses as much as digits as its factorization.

40222223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 40222223 is about 6342.0992581321. The cubic root of 40222223 is about 342.6273467520.

Adding to 40222223 its reverse (32222204), we get a palindrome (72444427).

The spelling of 40222223 in words is "forty million, two hundred twenty-two thousand, two hundred twenty-three".