3030748221 has 4 divisors (see below), whose sum is σ = 4040997632. Its totient is φ = 2020498812.

The previous prime is 3030748207. The next prime is 3030748223. The reversal of 3030748221 is 1228470303.

3030748221 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 3030748221 - 2⁷ = 3030748093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3030748223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505124701 + ... + 505124706.

It is an arithmetic number, because the mean of its divisors is an integer number (1010249408).

Almost surely, 2^3030748221 is an apocalyptic number.

It is an amenable number.

3030748221 is a deficient number, since it is larger than the sum of its proper divisors (1010249411).

3030748221 is a wasteful number, since it uses less digits than its factorization.

3030748221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010249410.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 3030748221 is about 55052.2317531270. The cubic root of 3030748221 is about 1447.1602321485.

The spelling of 3030748221 in words is "three billion, thirty million, seven hundred forty-eight thousand, two hundred twenty-one".