2005434 has 24 divisors (see below), whose sum is σ = 4447872. Its totient is φ = 652680.

The previous prime is 2005429. The next prime is 2005441. The reversal of 2005434 is 4345002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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, 522 + ... + 2069.

It is an arithmetic number, because the mean of its divisors is an integer number (185328).

2^2005434 is an apocalyptic number.

2005434 is an abundant number, since it is smaller than the sum of its proper divisors (2442438).

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

2005434 is a wasteful number, since it uses less digits than its factorization.

2005434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642 (or 2639 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 2005434 is about 1416.1334682861. The cubic root of 2005434 is about 126.1061086522.

The spelling of 2005434 in words is "two million, five thousand, four hundred thirty-four".