404445036 has 12 divisors (see below), whose sum is σ = 943705112. Its totient is φ = 134815008.

The previous prime is 404444987. The next prime is 404445091. The reversal of 404445036 is 630544404.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 404444994 and 404445012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16851865 + ... + 16851888.

Almost surely, 2^404445036 is an apocalyptic number.

It is an amenable number.

404445036 is an abundant number, since it is smaller than the sum of its proper divisors (539260076).

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

404445036 is a wasteful number, since it uses less digits than its factorization.

404445036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33703760 (or 33703758 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 404445036 is about 20110.8188793992. The cubic root of 404445036 is about 739.5255273502.

The spelling of 404445036 in words is "four hundred four million, four hundred forty-five thousand, thirty-six".