404708418 has 24 divisors (see below), whose sum is σ = 880640748. Its totient is φ = 134322432.

The previous prime is 404708413. The next prime is 404708431. The reversal of 404708418 is 814807404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 328443129 + 76265289 = 18123^2 + 8733^2 .

It is not an unprimeable number, because it can be changed into a prime (404708411) 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 11 ways as a sum of consecutive naturals, for example, 44055 + ... + 52442.

Almost surely, 2^404708418 is an apocalyptic number.

404708418 is an abundant number, since it is smaller than the sum of its proper divisors (475932330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404708418 is a wasteful number, since it uses less digits than its factorization.

404708418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96738 (or 96735 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 404708418 is about 20117.3660800812. The cubic root of 404708418 is about 739.6860233628.

The spelling of 404708418 in words is "four hundred four million, seven hundred eight thousand, four hundred eighteen".