1220785068 has 12 divisors (see below), whose sum is σ = 2848498520. Its totient is φ = 406928352.

The previous prime is 1220785063. The next prime is 1220785103. The reversal of 1220785068 is 8605870221.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1220785063) 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, 50866033 + ... + 50866056.

Almost surely, 2^1220785068 is an apocalyptic number.

It is an amenable number.

1220785068 is an abundant number, since it is smaller than the sum of its proper divisors (1627713452).

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

1220785068 is a wasteful number, since it uses less digits than its factorization.

1220785068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101732096 (or 101732094 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 1220785068 is about 34939.7348015122. The cubic root of 1220785068 is about 1068.7588800466.

The spelling of 1220785068 in words is "one billion, two hundred twenty million, seven hundred eighty-five thousand, sixty-eight".