3072243021 has 8 divisors (see below), whose sum is σ = 4112264064. Its totient is φ = 2040192000.

The previous prime is 3072243007. The next prime is 3072243023. The reversal of 3072243021 is 1203422703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3072243021 - 2⁵ = 3072242989 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3072242982 and 3072243000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3072243023) 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 7 ways as a sum of consecutive naturals, for example, 1991605 + ... + 1993146.

It is an arithmetic number, because the mean of its divisors is an integer number (514033008).

Almost surely, 2^3072243021 is an apocalyptic number.

It is an amenable number.

3072243021 is a deficient number, since it is larger than the sum of its proper divisors (1040021043).

3072243021 is a wasteful number, since it uses less digits than its factorization.

3072243021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3985011.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 3072243021 is about 55427.8181150945. The cubic root of 3072243021 is about 1453.7348064549.

Adding to 3072243021 its reverse (1203422703), we get a palindrome (4275665724).

The spelling of 3072243021 in words is "three billion, seventy-two million, two hundred forty-three thousand, twenty-one".