22401784445 has 8 divisors (see below), whose sum is σ = 26921853144. Its totient is φ = 17894953024.

The previous prime is 22401784441. The next prime is 22401784469. The reversal of 22401784445 is 54448710422.

It can be written as a sum of positive squares in 4 ways, for example, as 8709742276 + 13692042169 = 93326^2 + 117013^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22401784445 - 2² = 22401784441 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22401784441) 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, 3305594 + ... + 3312363.

It is an arithmetic number, because the mean of its divisors is an integer number (3365231643).

Almost surely, 2^22401784445 is an apocalyptic number.

It is an amenable number.

22401784445 is a deficient number, since it is larger than the sum of its proper divisors (4520068699).

22401784445 is an equidigital number, since it uses as much as digits as its factorization.

22401784445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6618639.

The product of its (nonzero) digits is 286720, while the sum is 41.

The spelling of 22401784445 in words is "twenty-two billion, four hundred one million, seven hundred eighty-four thousand, four hundred forty-five".