2005533404 has 24 divisors (see below), whose sum is σ = 4013409120. Its totient is φ = 859012416.

The previous prime is 2005533389. The next prime is 2005533407. The reversal of 2005533404 is 4043355002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005533407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30074 + ... + 70110.

It is an arithmetic number, because the mean of its divisors is an integer number (167225380).

Almost surely, 2^2005533404 is an apocalyptic number.

It is an amenable number.

2005533404 is an abundant number, since it is smaller than the sum of its proper divisors (2007875716).

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

2005533404 is a wasteful number, since it uses less digits than its factorization.

2005533404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41837 (or 41835 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 2005533404 is about 44783.1821558049. The cubic root of 2005533404 is about 1261.0819219860.

Adding to 2005533404 its reverse (4043355002), we get a palindrome (6048888406).

The spelling of 2005533404 in words is "two billion, five million, five hundred thirty-three thousand, four hundred four".