404012724413 has 2 divisors, whose sum is σ = 404012724414. Its totient is φ = 404012724412.

The previous prime is 404012724371. The next prime is 404012724433. The reversal of 404012724413 is 314427210404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 400539625924 + 3473098489 = 632882^2 + 58933^2 .

It is a cyclic number.

It is not a de Polignac number, because 404012724413 - 2²⁸ = 403744288957 is a prime.

It is a super-2 number, since 2×404012724413² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 404012724413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404012724433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202006362206 + 202006362207.

It is an arithmetic number, because the mean of its divisors is an integer number (202006362207).

Almost surely, 2^404012724413 is an apocalyptic number.

It is an amenable number.

404012724413 is a deficient number, since it is larger than the sum of its proper divisors (1).

404012724413 is an equidigital number, since it uses as much as digits as its factorization.

404012724413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 32.

Adding to 404012724413 its reverse (314427210404), we get a palindrome (718439934817).

The spelling of 404012724413 in words is "four hundred four billion, twelve million, seven hundred twenty-four thousand, four hundred thirteen".