404120317 has 2 divisors, whose sum is σ = 404120318. Its totient is φ = 404120316.

The previous prime is 404120279. The next prime is 404120347. The reversal of 404120317 is 713021404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 300467556 + 103652761 = 17334^2 + 10181^2 .

It is a cyclic number.

It is not a de Polignac number, because 404120317 - 2¹⁵ = 404087549 is a prime.

It is a super-2 number, since 2×404120317² = 326626461224360978, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404120347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202060158 + 202060159.

It is an arithmetic number, because the mean of its divisors is an integer number (202060159).

Almost surely, 2^404120317 is an apocalyptic number.

It is an amenable number.

404120317 is a deficient number, since it is larger than the sum of its proper divisors (1).

404120317 is an equidigital number, since it uses as much as digits as its factorization.

404120317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 404120317 is about 20102.7440166759. The cubic root of 404120317 is about 739.3275587232.

The spelling of 404120317 in words is "four hundred four million, one hundred twenty thousand, three hundred seventeen".