40010213 has 2 divisors, whose sum is σ = 40010214. Its totient is φ = 40010212.

The previous prime is 40010203. The next prime is 40010221. The reversal of 40010213 is 31201004.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35545444 + 4464769 = 5962^2 + 2113^2 .

It is a cyclic number.

It is not a de Polignac number, because 40010213 - 2⁶ = 40010149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40010194 and 40010203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40010203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20005106 + 20005107.

It is an arithmetic number, because the mean of its divisors is an integer number (20005107).

Almost surely, 2^40010213 is an apocalyptic number.

It is an amenable number.

40010213 is a deficient number, since it is larger than the sum of its proper divisors (1).

40010213 is an equidigital number, since it uses as much as digits as its factorization.

40010213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 40010213 is about 6325.3626773490. The cubic root of 40010213 is about 342.0242934990.

Adding to 40010213 its reverse (31201004), we get a palindrome (71211217).

The spelling of 40010213 in words is "forty million, ten thousand, two hundred thirteen".