1228269218 has 8 divisors (see below), whose sum is σ = 2009895120. Its totient is φ = 558304180.

The previous prime is 1228269199. The next prime is 1228269233. The reversal of 1228269218 is 8129628221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27915188 + ... + 27915231.

It is an arithmetic number, because the mean of its divisors is an integer number (251236890).

Almost surely, 2^1228269218 is an apocalyptic number.

1228269218 is a deficient number, since it is larger than the sum of its proper divisors (781625902).

1228269218 is a wasteful number, since it uses less digits than its factorization.

1228269218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55830432.

The product of its digits is 55296, while the sum is 41.

The square root of 1228269218 is about 35046.6719960683. The cubic root of 1228269218 is about 1070.9384778862.

The spelling of 1228269218 in words is "one billion, two hundred twenty-eight million, two hundred sixty-nine thousand, two hundred eighteen".