2228784099 has 16 divisors (see below), whose sum is σ = 3147851808. Its totient is φ = 1397860352.

The previous prime is 2228784079. The next prime is 2228784109. The reversal of 2228784099 is 9904878222.

It is a happy number.

It is a Cunningham number, because it is equal to 47210²-1.

It is a cyclic number.

It is not a de Polignac number, because 2228784099 - 2¹² = 2228780003 is a prime.

It is a super-3 number, since 3×2228784099³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (2228784049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133759 + ... + 149495.

It is an arithmetic number, because the mean of its divisors is an integer number (196740738).

Almost surely, 2^2228784099 is an apocalyptic number.

2228784099 is a deficient number, since it is larger than the sum of its proper divisors (919067709).

2228784099 is a wasteful number, since it uses less digits than its factorization.

2228784099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18534.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The square root of 2228784099 is about 47209.9999894090. Note that the first 4 decimals coincide. The cubic root of 2228784099 is about 1306.2390621582.

The spelling of 2228784099 in words is "two billion, two hundred twenty-eight million, seven hundred eighty-four thousand, ninety-nine".