1218839368 has 16 divisors (see below), whose sum is σ = 2384686080. Its totient is φ = 582923088.

The previous prime is 1218839329. The next prime is 1218839371. The reversal of 1218839368 is 8639388121.

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, 3311880 + ... + 3312247.

It is an arithmetic number, because the mean of its divisors is an integer number (149042880).

Almost surely, 2^1218839368 is an apocalyptic number.

It is an amenable number.

1218839368 is a deficient number, since it is larger than the sum of its proper divisors (1165846712).

1218839368 is a wasteful number, since it uses less digits than its factorization.

1218839368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6624156 (or 6624152 counting only the distinct ones).

The product of its digits is 497664, while the sum is 49.

The square root of 1218839368 is about 34911.8800410405. The cubic root of 1218839368 is about 1068.1907784333.

The spelling of 1218839368 in words is "one billion, two hundred eighteen million, eight hundred thirty-nine thousand, three hundred sixty-eight".