2228729860 has 48 divisors (see below), whose sum is σ = 5357640960. Its totient is φ = 762894720.

The previous prime is 2228729851. The next prime is 2228729873. The reversal of 2228729860 is 689278222.

It is a happy number.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2228729860.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75726 + ... + 100954.

It is an arithmetic number, because the mean of its divisors is an integer number (111617520).

Almost surely, 2^2228729860 is an apocalyptic number.

2228729860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2228729860 is an abundant number, since it is smaller than the sum of its proper divisors (3128911100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2228729860 is a wasteful number, since it uses less digits than its factorization.

2228729860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25876 (or 25874 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 2228729860 is about 47209.4255419402. The cubic root of 2228729860 is about 1306.2284659957.

The spelling of 2228729860 in words is "two billion, two hundred twenty-eight million, seven hundred twenty-nine thousand, eight hundred sixty".