1218349334 has 16 divisors (see below), whose sum is σ = 1897542720. Its totient is φ = 585990720.

The previous prime is 1218349333. The next prime is 1218349337. The reversal of 1218349334 is 4339438121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218349333) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23039 + ... + 54474.

It is an arithmetic number, because the mean of its divisors is an integer number (118596420).

Almost surely, 2^1218349334 is an apocalyptic number.

1218349334 is a deficient number, since it is larger than the sum of its proper divisors (679193386).

1218349334 is a wasteful number, since it uses less digits than its factorization.

1218349334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77815.

The product of its digits is 62208, while the sum is 38.

The square root of 1218349334 is about 34904.8611800706. The cubic root of 1218349334 is about 1068.0476039838.

The spelling of 1218349334 in words is "one billion, two hundred eighteen million, three hundred forty-nine thousand, three hundred thirty-four".