4608220021 has 4 divisors (see below), whose sum is σ = 4666552000. Its totient is φ = 4549888044.

The previous prime is 4608220007. The next prime is 4608220037. The reversal of 4608220021 is 1200228064.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4608220021 - 2⁷ = 4608219893 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 (4608220921) 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 3 ways as a sum of consecutive naturals, for example, 29165871 + ... + 29166028.

It is an arithmetic number, because the mean of its divisors is an integer number (1166638000).

Almost surely, 2^4608220021 is an apocalyptic number.

It is an amenable number.

4608220021 is a deficient number, since it is larger than the sum of its proper divisors (58331979).

4608220021 is an equidigital number, since it uses as much as digits as its factorization.

4608220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58331978.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 4608220021 is about 67883.8715822838. The cubic root of 4608220021 is about 1664.0935430966.

Adding to 4608220021 its reverse (1200228064), we get a palindrome (5808448085).

The spelling of 4608220021 in words is "four billion, six hundred eight million, two hundred twenty thousand, twenty-one".