1218836332 has 48 divisors (see below), whose sum is σ = 2575964160. Its totient is φ = 493301952.

The previous prime is 1218836323. The next prime is 1218836341. The reversal of 1218836332 is 2336388121.

It is an interprime number because it is at equal distance from previous prime (1218836323) and next prime (1218836341).

It is a junction number, because it is equal to n+sod(n) for n = 1218836291 and 1218836300.

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 15 ways as a sum of consecutive naturals, for example, 38898 + ... + 62854.

It is an arithmetic number, because the mean of its divisors is an integer number (53665920).

Almost surely, 2^1218836332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1218836332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1287982080).

1218836332 is an abundant number, since it is smaller than the sum of its proper divisors (1357127828).

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

1218836332 is a wasteful number, since it uses less digits than its factorization.

1218836332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24070 (or 24068 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 1218836332 is about 34911.8365601124. The cubic root of 1218836332 is about 1068.1898915158.

The spelling of 1218836332 in words is "one billion, two hundred eighteen million, eight hundred thirty-six thousand, three hundred thirty-two".