4572840221 has 8 divisors (see below), whose sum is σ = 4626360960. Its totient is φ = 4519495152.

The previous prime is 4572840211. The next prime is 4572840227. The reversal of 4572840221 is 1220482754.

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 4572840221 - 2⁶ = 4572840157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4572840227) 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, 8816 + ... + 96038.

It is an arithmetic number, because the mean of its divisors is an integer number (578295120).

Almost surely, 2^4572840221 is an apocalyptic number.

It is an amenable number.

4572840221 is a deficient number, since it is larger than the sum of its proper divisors (53520739).

4572840221 is a wasteful number, since it uses less digits than its factorization.

4572840221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87835.

The product of its (nonzero) digits is 35840, while the sum is 35.

The square root of 4572840221 is about 67622.7788618599. The cubic root of 4572840221 is about 1659.8238818573.

The spelling of 4572840221 in words is "four billion, five hundred seventy-two million, eight hundred forty thousand, two hundred twenty-one".