440420201 has 8 divisors (see below), whose sum is σ = 475662600. Its totient is φ = 405372672.

The previous prime is 440420159. The next prime is 440420219. The reversal of 440420201 is 102024044.

It can be written as a sum of positive squares in 4 ways, for example, as 124434025 + 315986176 = 11155^2 + 17776^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 440420201 - 2⁶ = 440420137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 440420201.

It is not an unprimeable number, because it can be changed into a prime (440420231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44000 + ... + 53073.

It is an arithmetic number, because the mean of its divisors is an integer number (59457825).

Almost surely, 2^440420201 is an apocalyptic number.

It is an amenable number.

440420201 is a deficient number, since it is larger than the sum of its proper divisors (35242399).

440420201 is a wasteful number, since it uses less digits than its factorization.

440420201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97435.

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

The square root of 440420201 is about 20986.1907215197. The cubic root of 440420201 is about 760.8325370004.

Adding to 440420201 its reverse (102024044), we get a palindrome (542444245).

The spelling of 440420201 in words is "four hundred forty million, four hundred twenty thousand, two hundred one".