440402201 has 2 divisors, whose sum is σ = 440402202. Its totient is φ = 440402200.

The previous prime is 440402191. The next prime is 440402203. The reversal of 440402201 is 102204044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 425184400 + 15217801 = 20620^2 + 3901^2 .

It is a cyclic number.

It is not a de Polignac number, because 440402201 - 2¹⁰ = 440401177 is a prime.

Together with 440402203, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 440402201.

It is not a weakly prime, because it can be changed into another prime (440402203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220201100 + 220201101.

It is an arithmetic number, because the mean of its divisors is an integer number (220201101).

Almost surely, 2^440402201 is an apocalyptic number.

It is an amenable number.

440402201 is a deficient number, since it is larger than the sum of its proper divisors (1).

440402201 is an equidigital number, since it uses as much as digits as its factorization.

440402201 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 440402201 is about 20985.7618637018. The cubic root of 440402201 is about 760.8221717687.

Adding to 440402201 its reverse (102204044), we get a palindrome (542606245).

The spelling of 440402201 in words is "four hundred forty million, four hundred two thousand, two hundred one".