2004442501 has 2 divisors, whose sum is σ = 2004442502. Its totient is φ = 2004442500.

The previous prime is 2004442499. The next prime is 2004442507. The reversal of 2004442501 is 1052444002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1630948225 + 373494276 = 40385^2 + 19326^2 .

It is a cyclic number.

It is not a de Polignac number, because 2004442501 - 2¹ = 2004442499 is a prime.

Together with 2004442499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2004442507) 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 as a sum of consecutive naturals, namely, 1002221250 + 1002221251.

It is an arithmetic number, because the mean of its divisors is an integer number (1002221251).

Almost surely, 2^2004442501 is an apocalyptic number.

It is an amenable number.

2004442501 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004442501 is an equidigital number, since it uses as much as digits as its factorization.

2004442501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 2004442501 is about 44771.0006700766. Note that the first 3 decimals coincide. The cubic root of 2004442501 is about 1260.8532267897.

Adding to 2004442501 its reverse (1052444002), we get a palindrome (3056886503).

The spelling of 2004442501 in words is "two billion, four million, four hundred forty-two thousand, five hundred one".