404244442237 has 2 divisors, whose sum is σ = 404244442238. Its totient is φ = 404244442236.

The previous prime is 404244442211. The next prime is 404244442241. The reversal of 404244442237 is 732244442404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 402490005241 + 1754436996 = 634421^2 + 41886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404244442237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 404244442237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404244442937) 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, 202122221118 + 202122221119.

It is an arithmetic number, because the mean of its divisors is an integer number (202122221119).

Almost surely, 2^404244442237 is an apocalyptic number.

It is an amenable number.

404244442237 is a deficient number, since it is larger than the sum of its proper divisors (1).

404244442237 is an equidigital number, since it uses as much as digits as its factorization.

404244442237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 688128, while the sum is 40.

The spelling of 404244442237 in words is "four hundred four billion, two hundred forty-four million, four hundred forty-two thousand, two hundred thirty-seven".