42004211 has 2 divisors, whose sum is σ = 42004212. Its totient is φ = 42004210.

The previous prime is 42004177. The next prime is 42004219. The reversal of 42004211 is 11240024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42004211 - 2¹⁰ = 42003187 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (42004219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21002105 + 21002106.

It is an arithmetic number, because the mean of its divisors is an integer number (21002106).

Almost surely, 2^42004211 is an apocalyptic number.

42004211 is a deficient number, since it is larger than the sum of its proper divisors (1).

42004211 is an equidigital number, since it uses as much as digits as its factorization.

42004211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 42004211 is about 6481.0655759682. The cubic root of 42004211 is about 347.6142812022.

Adding to 42004211 its reverse (11240024), we get a palindrome (53244235).

The spelling of 42004211 in words is "forty-two million, four thousand, two hundred eleven".