40027213 has 2 divisors, whose sum is σ = 40027214. Its totient is φ = 40027212.

The previous prime is 40027189. The next prime is 40027223. The reversal of 40027213 is 31272004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34257609 + 5769604 = 5853^2 + 2402^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40027213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40027223) 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, 20013606 + 20013607.

It is an arithmetic number, because the mean of its divisors is an integer number (20013607).

Almost surely, 2^40027213 is an apocalyptic number.

It is an amenable number.

40027213 is a deficient number, since it is larger than the sum of its proper divisors (1).

40027213 is an equidigital number, since it uses as much as digits as its factorization.

40027213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 40027213 is about 6326.7063311015. The cubic root of 40027213 is about 342.0727277133.

Adding to 40027213 its reverse (31272004), we get a palindrome (71299217).

The spelling of 40027213 in words is "forty million, twenty-seven thousand, two hundred thirteen".