404545404 has 24 divisors (see below), whose sum is σ = 944749008. Its totient is φ = 134732800.

The previous prime is 404545391. The next prime is 404545429.

It is a happy number.

404545404 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 754 + ... + 28454.

It is an arithmetic number, because the mean of its divisors is an integer number (39364542).

Almost surely, 2^404545404 is an apocalyptic number.

It is an amenable number.

404545404 is an abundant number, since it is smaller than the sum of its proper divisors (540203604).

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

404545404 is a wasteful number, since it uses less digits than its factorization.

404545404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28925 (or 28923 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 404545404 is about 20113.3140978805. The cubic root of 404545404 is about 739.5866964028.

The spelling of 404545404 in words is "four hundred four million, five hundred forty-five thousand, four hundred four".