40213441 has 2 divisors, whose sum is σ = 40213442. Its totient is φ = 40213440.

The previous prime is 40213429. The next prime is 40213447. The reversal of 40213441 is 14431204.

40213441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35820225 + 4393216 = 5985^2 + 2096^2 .

It is a cyclic number.

It is not a de Polignac number, because 40213441 - 2⁵ = 40213409 is a prime.

It is not a weakly prime, because it can be changed into another prime (40213447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20106720 + 20106721.

It is an arithmetic number, because the mean of its divisors is an integer number (20106721).

Almost surely, 2^40213441 is an apocalyptic number.

It is an amenable number.

40213441 is a deficient number, since it is larger than the sum of its proper divisors (1).

40213441 is an equidigital number, since it uses as much as digits as its factorization.

40213441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 40213441 is about 6341.4068628341. The cubic root of 40213441 is about 342.6024088598.

Adding to 40213441 its reverse (14431204), we get a palindrome (54644645).

The spelling of 40213441 in words is "forty million, two hundred thirteen thousand, four hundred forty-one".