11968218 has 24 divisors (see below), whose sum is σ = 26021268. Its totient is φ = 3975552.

The previous prime is 11968217. The next prime is 11968321. The reversal of 11968218 is 81286911.

It can be written as a sum of positive squares in 2 ways, for example, as 11108889 + 859329 = 3333^2 + 927^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11968217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5080 + ... + 7052.

Almost surely, 2^11968218 is an apocalyptic number.

11968218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11968218 is an abundant number, since it is smaller than the sum of its proper divisors (14053050).

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

11968218 is a wasteful number, since it uses less digits than its factorization.

11968218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318 (or 2315 counting only the distinct ones).

The product of its digits is 6912, while the sum is 36.

The square root of 11968218 is about 3459.5112371548. The cubic root of 11968218 is about 228.7405514327.

The spelling of 11968218 in words is "eleven million, nine hundred sixty-eight thousand, two hundred eighteen".