1206221676 has 24 divisors (see below), whose sum is σ = 3070382784. Its totient is φ = 365521680.

The previous prime is 1206221671. The next prime is 1206221699. The reversal of 1206221676 is 6761226021.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1206221671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4568890 + ... + 4569153.

It is an arithmetic number, because the mean of its divisors is an integer number (127932616).

Almost surely, 2^1206221676 is an apocalyptic number.

It is an amenable number.

1206221676 is an abundant number, since it is smaller than the sum of its proper divisors (1864161108).

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

1206221676 is a wasteful number, since it uses less digits than its factorization.

1206221676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9138061 (or 9138059 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1206221676 is about 34730.7022100043. The cubic root of 1206221676 is about 1064.4919369061.

Adding to 1206221676 its reverse (6761226021), we get a palindrome (7967447697).

The spelling of 1206221676 in words is "one billion, two hundred six million, two hundred twenty-one thousand, six hundred seventy-six".