42440201 has 16 divisors (see below), whose sum is σ = 44782848. Its totient is φ = 40185600.

The previous prime is 42440197. The next prime is 42440249. The reversal of 42440201 is 10204424.

It is a cyclic number.

It is not a de Polignac number, because 42440201 - 2² = 42440197 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 42440201.

It is not an unprimeable number, because it can be changed into a prime (42440291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323906 + ... + 324036.

It is an arithmetic number, because the mean of its divisors is an integer number (2798928).

Almost surely, 2^42440201 is an apocalyptic number.

It is an amenable number.

42440201 is a deficient number, since it is larger than the sum of its proper divisors (2342647).

42440201 is a wasteful number, since it uses less digits than its factorization.

42440201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352.

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

The square root of 42440201 is about 6514.6144168324. The cubic root of 42440201 is about 348.8128513882.

Adding to 42440201 its reverse (10204424), we get a palindrome (52644625).

The spelling of 42440201 in words is "forty-two million, four hundred forty thousand, two hundred one".