2004400345 has 8 divisors (see below), whose sum is σ = 2531874240. Its totient is φ = 1519124400.

The previous prime is 2004400331. The next prime is 2004400367. The reversal of 2004400345 is 5430044002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2004400345 - 2⁹ = 2004399833 is a prime.

It is a super-2 number, since 2×2004400345² = 8035241486072238050, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10549381 + ... + 10549570.

It is an arithmetic number, because the mean of its divisors is an integer number (316484280).

Almost surely, 2^2004400345 is an apocalyptic number.

It is an amenable number.

2004400345 is a deficient number, since it is larger than the sum of its proper divisors (527473895).

2004400345 is a wasteful number, since it uses less digits than its factorization.

2004400345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21098975.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 2004400345 is about 44770.5298717806. The cubic root of 2004400345 is about 1260.8443876069.

Adding to 2004400345 its reverse (5430044002), we get a palindrome (7434444347).

The spelling of 2004400345 in words is "two billion, four million, four hundred thousand, three hundred forty-five".