2228788979 has 4 divisors (see below), whose sum is σ = 2229129360. Its totient is φ = 2228448600.

The previous prime is 2228788963. The next prime is 2228788999. The reversal of 2228788979 is 9798878222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2228788979 - 2⁴ = 2228788963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2228788949) 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 in 3 ways as a sum of consecutive naturals, for example, 160172 + ... + 173529.

It is an arithmetic number, because the mean of its divisors is an integer number (557282340).

Almost surely, 2^2228788979 is an apocalyptic number.

2228788979 is a deficient number, since it is larger than the sum of its proper divisors (340381).

2228788979 is an equidigital number, since it uses as much as digits as its factorization.

2228788979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340380.

The product of its digits is 16257024, while the sum is 62.

The square root of 2228788979 is about 47210.0516733460. The cubic root of 2228788979 is about 1306.2400155094.

The spelling of 2228788979 in words is "two billion, two hundred twenty-eight million, seven hundred eighty-eight thousand, nine hundred seventy-nine".