22043400409 has 2 divisors, whose sum is σ = 22043400410. Its totient is φ = 22043400408.

The previous prime is 22043400377. The next prime is 22043400419. The reversal of 22043400409 is 90400434022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14544360000 + 7499040409 = 120600^2 + 86597^2 .

It is a cyclic number.

It is not a de Polignac number, because 22043400409 - 2⁵ = 22043400377 is a prime.

It is not a weakly prime, because it can be changed into another prime (22043400419) 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 as a sum of consecutive naturals, namely, 11021700204 + 11021700205.

It is an arithmetic number, because the mean of its divisors is an integer number (11021700205).

Almost surely, 2^22043400409 is an apocalyptic number.

It is an amenable number.

22043400409 is a deficient number, since it is larger than the sum of its proper divisors (1).

22043400409 is an equidigital number, since it uses as much as digits as its factorization.

22043400409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 22043400409 in words is "twenty-two billion, forty-three million, four hundred thousand, four hundred nine".