404140814 has 16 divisors (see below), whose sum is σ = 755796096. Its totient is φ = 157457400.

The previous prime is 404140801. The next prime is 404140817. The reversal of 404140814 is 418041404.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404140817) 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 in 7 ways as a sum of consecutive naturals, for example, 1311992 + ... + 1312299.

It is an arithmetic number, because the mean of its divisors is an integer number (47237256).

Almost surely, 2^404140814 is an apocalyptic number.

404140814 is a deficient number, since it is larger than the sum of its proper divisors (351655282).

404140814 is a wasteful number, since it uses less digits than its factorization.

404140814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624311.

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 404140814 is about 20103.2538162358. The cubic root of 404140814 is about 739.3400580872.

The spelling of 404140814 in words is "four hundred four million, one hundred forty thousand, eight hundred fourteen".