22004400409 has 2 divisors, whose sum is σ = 22004400410. Its totient is φ = 22004400408.

The previous prime is 22004400373. The next prime is 22004400461. The reversal of 22004400409 is 90400440022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20550656025 + 1453744384 = 143355^2 + 38128^2 .

It is a cyclic number.

It is not a de Polignac number, because 22004400409 - 2¹³ = 22004392217 is a prime.

It is not a weakly prime, because it can be changed into another prime (22004400809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11002200204 + 11002200205.

It is an arithmetic number, because the mean of its divisors is an integer number (11002200205).

Almost surely, 2^22004400409 is an apocalyptic number.

It is an amenable number.

22004400409 is a deficient number, since it is larger than the sum of its proper divisors (1).

22004400409 is an equidigital number, since it uses as much as digits as its factorization.

22004400409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 22004400409 in words is "twenty-two billion, four million, four hundred thousand, four hundred nine".