404630339 has 2 divisors, whose sum is σ = 404630340. Its totient is φ = 404630338.

The previous prime is 404630333. The next prime is 404630351. The reversal of 404630339 is 933036404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404630339 - 2¹⁶ = 404564803 is a prime.

It is a super-2 number, since 2×404630339² = 327451422478509842, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (404630333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202315169 + 202315170.

It is an arithmetic number, because the mean of its divisors is an integer number (202315170).

Almost surely, 2^404630339 is an apocalyptic number.

404630339 is a deficient number, since it is larger than the sum of its proper divisors (1).

404630339 is an equidigital number, since it uses as much as digits as its factorization.

404630339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 32.

The square root of 404630339 is about 20115.4253994292. The cubic root of 404630339 is about 739.6384519452.

The spelling of 404630339 in words is "four hundred four million, six hundred thirty thousand, three hundred thirty-nine".