4504140721 has 16 divisors (see below), whose sum is σ = 4655553280. Its totient is φ = 4354404480.

The previous prime is 4504140689. The next prime is 4504140733. The reversal of 4504140721 is 1270414054.

It is a cyclic number.

It is not a de Polignac number, because 4504140721 - 2⁵ = 4504140689 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 4504140721.

It is not an unprimeable number, because it can be changed into a prime (4504140791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5553406 + ... + 5554216.

It is an arithmetic number, because the mean of its divisors is an integer number (290972080).

Almost surely, 2^4504140721 is an apocalyptic number.

It is an amenable number.

4504140721 is a deficient number, since it is larger than the sum of its proper divisors (151412559).

4504140721 is a wasteful number, since it uses less digits than its factorization.

4504140721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 4504140721 is about 67112.8953406124. The cubic root of 4504140721 is about 1651.4698528938.

Adding to 4504140721 its reverse (1270414054), we get a palindrome (5774554775).

The spelling of 4504140721 in words is "four billion, five hundred four million, one hundred forty thousand, seven hundred twenty-one".