2004995423 has 4 divisors (see below), whose sum is σ = 2005128048. Its totient is φ = 2004862800.

The previous prime is 2004995413. The next prime is 2004995441. The reversal of 2004995423 is 3245994002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2004995423 - 2¹² = 2004991327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004995413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40211 + ... + 75012.

It is an arithmetic number, because the mean of its divisors is an integer number (501282012).

Almost surely, 2^2004995423 is an apocalyptic number.

2004995423 is a deficient number, since it is larger than the sum of its proper divisors (132625).

2004995423 is a wasteful number, since it uses less digits than its factorization.

2004995423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132624.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 2004995423 is about 44777.1752458772. The cubic root of 2004995423 is about 1260.9691508591.

The spelling of 2004995423 in words is "two billion, four million, nine hundred ninety-five thousand, four hundred twenty-three".