4431421201 has 16 divisors (see below), whose sum is σ = 4884295680. Its totient is φ = 4006593360.

The previous prime is 4431421187. The next prime is 4431421207. The reversal of 4431421201 is 1021241344.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4431421201 - 2¹³ = 4431413009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4431421207) 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, 41611 + ... + 102928.

It is an arithmetic number, because the mean of its divisors is an integer number (305268480).

Almost surely, 2^4431421201 is an apocalyptic number.

It is an amenable number.

4431421201 is a deficient number, since it is larger than the sum of its proper divisors (452874479).

4431421201 is a wasteful number, since it uses less digits than its factorization.

4431421201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144636.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 4431421201 is about 66568.9206837545. The cubic root of 4431421201 is about 1642.5339077611.

Adding to 4431421201 its reverse (1021241344), we get a palindrome (5452662545).

The spelling of 4431421201 in words is "four billion, four hundred thirty-one million, four hundred twenty-one thousand, two hundred one".