2243664423 has 192 divisors, whose sum is σ = 4589125632. Its totient is φ = 1018967040.

The previous prime is 2243664407. The next prime is 2243664439. The reversal of 2243664423 is 3244663422.

2243664423 is a `hidden beast` number, since 2 + 2 + 4 + 3 + 6 + 644 + 2 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (2243664407) and next prime (2243664439).

It is not a de Polignac number, because 2243664423 - 2⁴ = 2243664407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243664623) 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 191 ways as a sum of consecutive naturals, for example, 17666586 + ... + 17666712.

It is an arithmetic number, because the mean of its divisors is an integer number (23901696).

Almost surely, 2^2243664423 is an apocalyptic number.

2243664423 is an abundant number, since it is smaller than the sum of its proper divisors (2345461209).

2243664423 is a wasteful number, since it uses less digits than its factorization.

2243664423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 251 counting only the distinct ones).

The product of its digits is 165888, while the sum is 36.

The square root of 2243664423 is about 47367.3349788649. The cubic root of 2243664423 is about 1309.1396217103.

It can be divided in two parts, 2243 and 664423, that added together give a palindrome (666666).

The spelling of 2243664423 in words is "two billion, two hundred forty-three million, six hundred sixty-four thousand, four hundred twenty-three".