4200404321 has 2 divisors, whose sum is σ = 4200404322. Its totient is φ = 4200404320.

The previous prime is 4200404311. The next prime is 4200404357. The reversal of 4200404321 is 1234040024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2898637921 + 1301766400 = 53839^2 + 36080^2 .

It is a cyclic number.

It is not a de Polignac number, because 4200404321 - 2²⁶ = 4133295457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4200404293 and 4200404302.

It is not a weakly prime, because it can be changed into another prime (4200404311) 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 as a sum of consecutive naturals, namely, 2100202160 + 2100202161.

It is an arithmetic number, because the mean of its divisors is an integer number (2100202161).

Almost surely, 2^4200404321 is an apocalyptic number.

It is an amenable number.

4200404321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4200404321 is an equidigital number, since it uses as much as digits as its factorization.

4200404321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4200404321 is about 64810.5263132464. The cubic root of 4200404321 is about 1613.4804176239.

Adding to 4200404321 its reverse (1234040024), we get a palindrome (5434444345).

The spelling of 4200404321 in words is "four billion, two hundred million, four hundred four thousand, three hundred twenty-one".