2004422257 has 2 divisors, whose sum is σ = 2004422258. Its totient is φ = 2004422256.

The previous prime is 2004422191. The next prime is 2004422263. The reversal of 2004422257 is 7522244002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1975002481 + 29419776 = 44441^2 + 5424^2 .

It is a cyclic number.

It is not a de Polignac number, because 2004422257 - 2⁷ = 2004422129 is a prime.

It is not a weakly prime, because it can be changed into another prime (2004425257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002211128 + 1002211129.

It is an arithmetic number, because the mean of its divisors is an integer number (1002211129).

Almost surely, 2^2004422257 is an apocalyptic number.

It is an amenable number.

2004422257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004422257 is an equidigital number, since it uses as much as digits as its factorization.

2004422257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 2004422257 is about 44770.7745856602. The cubic root of 2004422257 is about 1260.8489820852.

Adding to 2004422257 its reverse (7522244002), we get a palindrome (9526666259).

The spelling of 2004422257 in words is "two billion, four million, four hundred twenty-two thousand, two hundred fifty-seven".