20002400417 has 2 divisors, whose sum is σ = 20002400418. Its totient is φ = 20002400416.

The previous prime is 20002400371. The next prime is 20002400441. The reversal of 20002400417 is 71400420002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17293302016 + 2709098401 = 131504^2 + 52049^2 .

It is a cyclic number.

It is not a de Polignac number, because 20002400417 - 2¹⁶ = 20002334881 is a prime.

It is not a weakly prime, because it can be changed into another prime (20002400477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001200208 + 10001200209.

It is an arithmetic number, because the mean of its divisors is an integer number (10001200209).

Almost surely, 2^20002400417 is an apocalyptic number.

It is an amenable number.

20002400417 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002400417 is an equidigital number, since it uses as much as digits as its factorization.

20002400417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 20.

Adding to 20002400417 its reverse (71400420002), we get a palindrome (91402820419).

The spelling of 20002400417 in words is "twenty billion, two million, four hundred thousand, four hundred seventeen".