1206686208 has 320 divisors, whose sum is σ = 4042241280. Its totient is φ = 311427072.

The previous prime is 1206686203. The next prime is 1206686213. The reversal of 1206686208 is 8026866021.

It is an interprime number because it is at equal distance from previous prime (1206686203) and next prime (1206686213).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1206686203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12440016 + ... + 12440112.

It is an arithmetic number, because the mean of its divisors is an integer number (12632004).

Almost surely, 2^1206686208 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 1206686208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2021120640).

1206686208 is an abundant number, since it is smaller than the sum of its proper divisors (2835555072).

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

1206686208 is an equidigital number, since it uses as much as digits as its factorization.

1206686208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 1206686208 is about 34737.3891937779. The cubic root of 1206686208 is about 1064.6285693658.

The spelling of 1206686208 in words is "one billion, two hundred six million, six hundred eighty-six thousand, two hundred eight".