404484420157 has 2 divisors, whose sum is σ = 404484420158. Its totient is φ = 404484420156.

The previous prime is 404484420149. The next prime is 404484420163. The reversal of 404484420157 is 751024484404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 372086580121 + 32397840036 = 609989^2 + 179994^2 .

It is a cyclic number.

It is not a de Polignac number, because 404484420157 - 2³ = 404484420149 is a prime.

It is a super-2 number, since 2×404484420157² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404484420257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202242210078 + 202242210079.

It is an arithmetic number, because the mean of its divisors is an integer number (202242210079).

Almost surely, 2^404484420157 is an apocalyptic number.

It is an amenable number.

404484420157 is a deficient number, since it is larger than the sum of its proper divisors (1).

404484420157 is an equidigital number, since it uses as much as digits as its factorization.

404484420157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 573440, while the sum is 43.

The spelling of 404484420157 in words is "four hundred four billion, four hundred eighty-four million, four hundred twenty thousand, one hundred fifty-seven".