2004400450 has 24 divisors (see below), whose sum is σ = 4014969588. Its totient is φ = 740086080.

The previous prime is 2004400439. The next prime is 2004400457. The reversal of 2004400450 is 540044002.

It can be written as a sum of positive squares in 6 ways, for example, as 910047889 + 1094352561 = 30167^2 + 33081^2 .

It is not an unprimeable number, because it can be changed into a prime (2004400457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1541197 + ... + 1542496.

Almost surely, 2^2004400450 is an apocalyptic number.

2004400450 is an abundant number, since it is smaller than the sum of its proper divisors (2010569138).

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

2004400450 is a wasteful number, since it uses less digits than its factorization.

2004400450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3083718 (or 3083713 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 2004400450 is about 44770.5310444270. The cubic root of 2004400450 is about 1260.8444096232.

Adding to 2004400450 its reverse (540044002), we get a palindrome (2544444452).

The spelling of 2004400450 in words is "two billion, four million, four hundred thousand, four hundred fifty".