404140351 has 2 divisors, whose sum is σ = 404140352. Its totient is φ = 404140350.

The previous prime is 404140349. The next prime is 404140361. The reversal of 404140351 is 153041404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404140351 - 2¹ = 404140349 is a prime.

Together with 404140349, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404140361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202070175 + 202070176.

It is an arithmetic number, because the mean of its divisors is an integer number (202070176).

Almost surely, 2^404140351 is an apocalyptic number.

404140351 is a deficient number, since it is larger than the sum of its proper divisors (1).

404140351 is an equidigital number, since it uses as much as digits as its factorization.

404140351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 404140351 is about 20103.2423006837. The cubic root of 404140351 is about 739.3397757478.

Adding to 404140351 its reverse (153041404), we get a palindrome (557181755).

The spelling of 404140351 in words is "four hundred four million, one hundred forty thousand, three hundred fifty-one".