40240004213 has 2 divisors, whose sum is σ = 40240004214. Its totient is φ = 40240004212.

The previous prime is 40240004201. The next prime is 40240004219. The reversal of 40240004213 is 31240004204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39584285764 + 655718449 = 198958^2 + 25607^2 .

It is a cyclic number.

It is not a de Polignac number, because 40240004213 - 2⁶ = 40240004149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40240004219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20120002106 + 20120002107.

It is an arithmetic number, because the mean of its divisors is an integer number (20120002107).

Almost surely, 2^40240004213 is an apocalyptic number.

It is an amenable number.

40240004213 is a deficient number, since it is larger than the sum of its proper divisors (1).

40240004213 is an equidigital number, since it uses as much as digits as its factorization.

40240004213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 40240004213 its reverse (31240004204), we get a palindrome (71480008417).

Subtracting from 40240004213 its reverse (31240004204), we obtain a palindrome (9000000009).

The spelling of 40240004213 in words is "forty billion, two hundred forty million, four thousand, two hundred thirteen".