40004201 has 2 divisors, whose sum is σ = 40004202. Its totient is φ = 40004200.

The previous prime is 40004189. The next prime is 40004203. The reversal of 40004201 is 10240004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26790976 + 13213225 = 5176^2 + 3635^2 .

It is a cyclic number.

It is not a de Polignac number, because 40004201 - 2¹⁰ = 40003177 is a prime.

Together with 40004203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40004203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20002100 + 20002101.

It is an arithmetic number, because the mean of its divisors is an integer number (20002101).

Almost surely, 2^40004201 is an apocalyptic number.

It is an amenable number.

40004201 is a deficient number, since it is larger than the sum of its proper divisors (1).

40004201 is an equidigital number, since it uses as much as digits as its factorization.

40004201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 40004201 is about 6324.8874298283. The cubic root of 40004201 is about 342.0071615978.

Adding to 40004201 its reverse (10240004), we get a palindrome (50244205).

The spelling of 40004201 in words is "forty million, four thousand, two hundred one".