40622213 has 2 divisors, whose sum is σ = 40622214. Its totient is φ = 40622212.

The previous prime is 40622207. The next prime is 40622227. The reversal of 40622213 is 31222604.

40622213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28912129 + 11710084 = 5377^2 + 3422^2 .

It is a cyclic number.

It is not a de Polignac number, because 40622213 - 2¹⁸ = 40360069 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40622713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20311106 + 20311107.

It is an arithmetic number, because the mean of its divisors is an integer number (20311107).

Almost surely, 2^40622213 is an apocalyptic number.

It is an amenable number.

40622213 is a deficient number, since it is larger than the sum of its proper divisors (1).

40622213 is an equidigital number, since it uses as much as digits as its factorization.

40622213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 40622213 is about 6373.5557579737. Note that the first 3 decimals coincide. The cubic root of 40622213 is about 343.7593554258.

Adding to 40622213 its reverse (31222604), we get a palindrome (71844817).

The spelling of 40622213 in words is "forty million, six hundred twenty-two thousand, two hundred thirteen".