22404043009 has 2 divisors, whose sum is σ = 22404043010. Its totient is φ = 22404043008.

The previous prime is 22404043001. The next prime is 22404043033. The reversal of 22404043009 is 90034040422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21299943025 + 1104099984 = 145945^2 + 33228^2 .

It is a cyclic number.

It is not a de Polignac number, because 22404043009 - 2³ = 22404043001 is a prime.

It is a super-2 number, since 2×22404043009² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22404043001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11202021504 + 11202021505.

It is an arithmetic number, because the mean of its divisors is an integer number (11202021505).

Almost surely, 2^22404043009 is an apocalyptic number.

It is an amenable number.

22404043009 is a deficient number, since it is larger than the sum of its proper divisors (1).

22404043009 is an equidigital number, since it uses as much as digits as its factorization.

22404043009 is an evil number, because the sum of its binary digits is even.

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

The spelling of 22404043009 in words is "twenty-two billion, four hundred four million, forty-three thousand, nine".