2243280021 has 8 divisors (see below), whose sum is σ = 2991471264. Its totient is φ = 1495304400.

The previous prime is 2243279989. The next prime is 2243280023. The reversal of 2243280021 is 1200823422.

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

It is not a de Polignac number, because 2243280021 - 2⁵ = 2243279989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2243279973 and 2243280000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243280023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27826 + ... + 72531.

It is an arithmetic number, because the mean of its divisors is an integer number (373933908).

Almost surely, 2^2243280021 is an apocalyptic number.

It is an amenable number.

2243280021 is a deficient number, since it is larger than the sum of its proper divisors (748191243).

2243280021 is a wasteful number, since it uses less digits than its factorization.

2243280021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107811.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 2243280021 is about 47363.2771353503. The cubic root of 2243280021 is about 1309.0648534539.

The spelling of 2243280021 in words is "two billion, two hundred forty-three million, two hundred eighty thousand, twenty-one".