404505340037 has 2 divisors, whose sum is σ = 404505340038. Its totient is φ = 404505340036.

The previous prime is 404505339991. The next prime is 404505340103. The reversal of 404505340037 is 730043505404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 336157603681 + 68347736356 = 579791^2 + 261434^2 .

It is a cyclic number.

It is not a de Polignac number, because 404505340037 - 2²² = 404501145733 is a prime.

It is a super-2 number, since 2×404505340037² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404505339979 and 404505340006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404505340237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202252670018 + 202252670019.

It is an arithmetic number, because the mean of its divisors is an integer number (202252670019).

Almost surely, 2^404505340037 is an apocalyptic number.

It is an amenable number.

404505340037 is a deficient number, since it is larger than the sum of its proper divisors (1).

404505340037 is an equidigital number, since it uses as much as digits as its factorization.

404505340037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 35.

The spelling of 404505340037 in words is "four hundred four billion, five hundred five million, three hundred forty thousand, thirty-seven".