404070239 has 2 divisors, whose sum is σ = 404070240. Its totient is φ = 404070238.

The previous prime is 404070223. The next prime is 404070287. The reversal of 404070239 is 932070404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404070239 - 2⁴ = 404070223 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404070209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202035119 + 202035120.

It is an arithmetic number, because the mean of its divisors is an integer number (202035120).

Almost surely, 2^404070239 is an apocalyptic number.

404070239 is a deficient number, since it is larger than the sum of its proper divisors (1).

404070239 is an equidigital number, since it uses as much as digits as its factorization.

404070239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 404070239 is about 20101.4984267343. The cubic root of 404070239 is about 739.2970186643.

The spelling of 404070239 in words is "four hundred four million, seventy thousand, two hundred thirty-nine".