1205680002 has 32 divisors (see below), whose sum is σ = 2529245952. Its totient is φ = 382708224.

The previous prime is 1205679983. The next prime is 1205680009. The reversal of 1205680002 is 2000865021.

It is not an unprimeable number, because it can be changed into a prime (1205680009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47343 + ... + 68210.

It is an arithmetic number, because the mean of its divisors is an integer number (79038936).

Almost surely, 2^1205680002 is an apocalyptic number.

1205680002 is an abundant number, since it is smaller than the sum of its proper divisors (1323565950).

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

1205680002 is a wasteful number, since it uses less digits than its factorization.

1205680002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115642.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1205680002 is about 34722.9031332347. The cubic root of 1205680002 is about 1064.3325704175.

The spelling of 1205680002 in words is "one billion, two hundred five million, six hundred eighty thousand, two".