2041421 has 2 divisors, whose sum is σ = 2041422. Its totient is φ = 2041420.

The previous prime is 2041387. The next prime is 2041427. The reversal of 2041421 is 1241402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1999396 + 42025 = 1414^2 + 205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2041421 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2041396 and 2041405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2041427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020710 + 1020711.

It is an arithmetic number, because the mean of its divisors is an integer number (1020711).

2^2041421 is an apocalyptic number.

It is an amenable number.

2041421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2041421 is an equidigital number, since it uses as much as digits as its factorization.

2041421 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 2041421 is about 1428.7830486116. The cubic root of 2041421 is about 126.8559550632.

Adding to 2041421 its reverse (1241402), we get a palindrome (3282823).

The spelling of 2041421 in words is "two million, forty-one thousand, four hundred twenty-one".