2005435404 has 36 divisors (see below), whose sum is σ = 5793480784. Its totient is φ = 572981472.

The previous prime is 2005435391. The next prime is 2005435423. The reversal of 2005435404 is 4045345002.

2005435404 is a `hidden beast` number, since 200 + 54 + 3 + 5 + 404 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3978787 + ... + 3979290.

Almost surely, 2^2005435404 is an apocalyptic number.

It is an amenable number.

2005435404 is an abundant number, since it is smaller than the sum of its proper divisors (3788045380).

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

2005435404 is a wasteful number, since it uses less digits than its factorization.

2005435404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7958094 (or 7958089 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 2005435404 is about 44782.0879816920. The cubic root of 2005435404 is about 1261.0613808104.

The spelling of 2005435404 in words is "two billion, five million, four hundred thirty-five thousand, four hundred four".