1212842208 has 24 divisors (see below), whose sum is σ = 3183711048. Its totient is φ = 404280704.

The previous prime is 1212842161. The next prime is 1212842209. The reversal of 1212842208 is 8022482121.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212842209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6316791 + ... + 6316982.

It is an arithmetic number, because the mean of its divisors is an integer number (132654627).

Almost surely, 2^1212842208 is an apocalyptic number.

It is an amenable number.

1212842208 is an abundant number, since it is smaller than the sum of its proper divisors (1970868840).

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

1212842208 is a wasteful number, since it uses less digits than its factorization.

1212842208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12633786 (or 12633778 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 1212842208 is about 34825.8841668090. The cubic root of 1212842208 is about 1066.4359268264.

The spelling of 1212842208 in words is "one billion, two hundred twelve million, eight hundred forty-two thousand, two hundred eight".