1218493110 has 16 divisors (see below), whose sum is σ = 2924383536. Its totient is φ = 324931488.

The previous prime is 1218493109. The next prime is 1218493127. The reversal of 1218493110 is 113948121.

1218493110 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 40616437 = 1218493110 / (1 + 2 + 1 + 8 + 4 + 9 + 3 + 1 + 1 + 0).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20308189 + ... + 20308248.

It is an arithmetic number, because the mean of its divisors is an integer number (182773971).

Almost surely, 2^1218493110 is an apocalyptic number.

1218493110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1218493110 is an abundant number, since it is smaller than the sum of its proper divisors (1705890426).

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

1218493110 is a wasteful number, since it uses less digits than its factorization.

1218493110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40616447.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1218493110 is about 34906.9206605223. The cubic root of 1218493110 is about 1068.0896153533.

The spelling of 1218493110 in words is "one billion, two hundred eighteen million, four hundred ninety-three thousand, one hundred ten".