40404030413 has 2 divisors, whose sum is σ = 40404030414. Its totient is φ = 40404030412.

The previous prime is 40404030349. The next prime is 40404030449. The reversal of 40404030413 is 31403040404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39165201604 + 1238828809 = 197902^2 + 35197^2 .

It is a cyclic number.

It is not a de Polignac number, because 40404030413 - 2⁶ = 40404030349 is a prime.

It is a super-2 number, since 2×40404030413² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40404030463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20202015206 + 20202015207.

It is an arithmetic number, because the mean of its divisors is an integer number (20202015207).

Almost surely, 2^40404030413 is an apocalyptic number.

It is an amenable number.

40404030413 is a deficient number, since it is larger than the sum of its proper divisors (1).

40404030413 is an equidigital number, since it uses as much as digits as its factorization.

40404030413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 40404030413 its reverse (31403040404), we get a palindrome (71807070817).

Subtracting from 40404030413 its reverse (31403040404), we obtain a palindrome (9000990009).

The spelling of 40404030413 in words is "forty billion, four hundred four million, thirty thousand, four hundred thirteen".