2243662443 has 128 divisors (see below), whose sum is σ = 4064256000. Its totient is φ = 1207198080.

The previous prime is 2243662439. The next prime is 2243662469. The reversal of 2243662443 is 3442663422.

2243662443 is a `hidden beast` number, since 2 + 24 + 3 + 6 + 624 + 4 + 3 = 666.

It is not a de Polignac number, because 2243662443 - 2² = 2243662439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2243662398 and 2243662407.

It is not an unprimeable number, because it can be changed into a prime (2243662483) 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 127 ways as a sum of consecutive naturals, for example, 7657405 + ... + 7657697.

It is an arithmetic number, because the mean of its divisors is an integer number (31752000).

Almost surely, 2^2243662443 is an apocalyptic number.

2243662443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2243662443 is a deficient number, since it is larger than the sum of its proper divisors (1820593557).

2243662443 is a wasteful number, since it uses less digits than its factorization.

2243662443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 408 counting only the distinct ones).

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

The square root of 2243662443 is about 47367.3140783811. The cubic root of 2243662443 is about 1309.1392366116.

The spelling of 2243662443 in words is "two billion, two hundred forty-three million, six hundred sixty-two thousand, four hundred forty-three".