2266421993 has 4 divisors (see below), whose sum is σ = 2472460368. Its totient is φ = 2060383620.

The previous prime is 2266421977. The next prime is 2266422017. The reversal of 2266421993 is 3991246622.

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 2266421993 - 2⁴ = 2266421977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2266421933) 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 3 ways as a sum of consecutive naturals, for example, 103019171 + ... + 103019192.

It is an arithmetic number, because the mean of its divisors is an integer number (618115092).

Almost surely, 2^2266421993 is an apocalyptic number.

It is an amenable number.

2266421993 is a deficient number, since it is larger than the sum of its proper divisors (206038375).

2266421993 is a wasteful number, since it uses less digits than its factorization.

2266421993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206038374.

The product of its digits is 279936, while the sum is 44.

The square root of 2266421993 is about 47606.9532001366. The cubic root of 2266421993 is about 1313.5509573420.

The spelling of 2266421993 in words is "two billion, two hundred sixty-six million, four hundred twenty-one thousand, nine hundred ninety-three".