3645442001 has 8 divisors (see below), whose sum is σ = 3665324520. Its totient is φ = 3625606912.

The previous prime is 3645441977. The next prime is 3645442007. The reversal of 3645442001 is 1002445463.

3645442001 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 180625 + 3645261376 = 425^2 + 60376^2 .

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 3645442001 - 2¹⁰ = 3645440977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3645442007) 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, 148091 + ... + 170943.

It is an arithmetic number, because the mean of its divisors is an integer number (458165565).

Almost surely, 2^3645442001 is an apocalyptic number.

It is an amenable number.

3645442001 is a deficient number, since it is larger than the sum of its proper divisors (19882519).

3645442001 is a wasteful number, since it uses less digits than its factorization.

3645442001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23715.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 3645442001 is about 60377.4958159081. The cubic root of 3645442001 is about 1539.0405561679.

Adding to 3645442001 its reverse (1002445463), we get a palindrome (4647887464).

The spelling of 3645442001 in words is "three billion, six hundred forty-five million, four hundred forty-two thousand, one".