1206642208 has 96 divisors (see below), whose sum is σ = 2528064000. Its totient is φ = 566092800.

The previous prime is 1206642161. The next prime is 1206642209. The reversal of 1206642208 is 8022466021.

It is a self number, because there is not a number n which added to its sum of digits gives 1206642208.

It is not an unprimeable number, because it can be changed into a prime (1206642209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7990933 + ... + 7991083.

It is an arithmetic number, because the mean of its divisors is an integer number (26334000).

Almost surely, 2^1206642208 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 1206642208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1264032000).

1206642208 is an abundant number, since it is smaller than the sum of its proper divisors (1321421792).

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

1206642208 is a wasteful number, since it uses less digits than its factorization.

1206642208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 1206642208 is about 34736.7558646457. The cubic root of 1206642208 is about 1064.6156291813.

The spelling of 1206642208 in words is "one billion, two hundred six million, six hundred forty-two thousand, two hundred eight".