1228242278 has 8 divisors (see below), whose sum is σ = 1905893280. Its totient is φ = 592944520.

The previous prime is 1228242263. The next prime is 1228242311. The reversal of 1228242278 is 8722428221.

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

It is a congruent number.

It is an unprimeable number.

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, 10588238 + ... + 10588353.

It is an arithmetic number, because the mean of its divisors is an integer number (238236660).

Almost surely, 2^1228242278 is an apocalyptic number.

1228242278 is a deficient number, since it is larger than the sum of its proper divisors (677651002).

1228242278 is a wasteful number, since it uses less digits than its factorization.

1228242278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21176622.

The product of its digits is 57344, while the sum is 38.

The square root of 1228242278 is about 35046.2876493360. The cubic root of 1228242278 is about 1070.9306480898.

The spelling of 1228242278 in words is "one billion, two hundred twenty-eight million, two hundred forty-two thousand, two hundred seventy-eight".