22287943441 has 4 divisors (see below), whose sum is σ = 22293044532. Its totient is φ = 22282842352.

The previous prime is 22287943423. The next prime is 22287943477. The reversal of 22287943441 is 14434978222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13672391041 + 8615552400 = 116929^2 + 92820^2 .

It is a cyclic number.

It is not a de Polignac number, because 22287943441 - 2⁵ = 22287943409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22287943391 and 22287943400.

It is not an unprimeable number, because it can be changed into a prime (22207943441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2543986 + ... + 2552731.

It is an arithmetic number, because the mean of its divisors is an integer number (5573261133).

Almost surely, 2^22287943441 is an apocalyptic number.

It is an amenable number.

22287943441 is a deficient number, since it is larger than the sum of its proper divisors (5101091).

22287943441 is an equidigital number, since it uses as much as digits as its factorization.

22287943441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5101090.

The product of its digits is 774144, while the sum is 46.

The spelling of 22287943441 in words is "twenty-two billion, two hundred eighty-seven million, nine hundred forty-three thousand, four hundred forty-one".