2233478909 has 2 divisors, whose sum is σ = 2233478910. Its totient is φ = 2233478908.

The previous prime is 2233478881. The next prime is 2233478911. The reversal of 2233478909 is 9098743322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2220482884 + 12996025 = 47122^2 + 3605^2 .

It is a cyclic number.

It is not a de Polignac number, because 2233478909 - 2¹⁶ = 2233413373 is a prime.

Together with 2233478911, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2233478939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1116739454 + 1116739455.

It is an arithmetic number, because the mean of its divisors is an integer number (1116739455).

Almost surely, 2^2233478909 is an apocalyptic number.

It is an amenable number.

2233478909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2233478909 is an equidigital number, since it uses as much as digits as its factorization.

2233478909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 2233478909 is about 47259.6964548017. The cubic root of 2233478909 is about 1307.1555922805.

The spelling of 2233478909 in words is "two billion, two hundred thirty-three million, four hundred seventy-eight thousand, nine hundred nine".