40220441 has 2 divisors, whose sum is σ = 40220442. Its totient is φ = 40220440.

The previous prime is 40220407. The next prime is 40220449. The reversal of 40220441 is 14402204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32262400 + 7958041 = 5680^2 + 2821^2 .

It is a cyclic number.

It is not a de Polignac number, because 40220441 - 2¹⁸ = 39958297 is a prime.

It is not a weakly prime, because it can be changed into another prime (40220449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20110220 + 20110221.

It is an arithmetic number, because the mean of its divisors is an integer number (20110221).

Almost surely, 2^40220441 is an apocalyptic number.

It is an amenable number.

40220441 is a deficient number, since it is larger than the sum of its proper divisors (1).

40220441 is an equidigital number, since it uses as much as digits as its factorization.

40220441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 40220441 is about 6341.9587668164. The cubic root of 40220441 is about 342.6222867718.

Adding to 40220441 its reverse (14402204), we get a palindrome (54622645).

The spelling of 40220441 in words is "forty million, two hundred twenty thousand, four hundred forty-one".