404021430149 has 2 divisors, whose sum is σ = 404021430150. Its totient is φ = 404021430148.

The previous prime is 404021430089. The next prime is 404021430179. The reversal of 404021430149 is 941034120404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 278659405924 + 125362024225 = 527882^2 + 354065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404021430149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404021430179) 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, 202010715074 + 202010715075.

It is an arithmetic number, because the mean of its divisors is an integer number (202010715075).

Almost surely, 2^404021430149 is an apocalyptic number.

It is an amenable number.

404021430149 is a deficient number, since it is larger than the sum of its proper divisors (1).

404021430149 is an equidigital number, since it uses as much as digits as its factorization.

404021430149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 404021430149 in words is "four hundred four billion, twenty-one million, four hundred thirty thousand, one hundred forty-nine".