681288302 has 32 divisors (see below), whose sum is σ = 1083777024. Its totient is φ = 320695200.

The previous prime is 681288253. The next prime is 681288317. The reversal of 681288302 is 203882186.

681288302 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1122083 + ... + 1122689.

It is an arithmetic number, because the mean of its divisors is an integer number (33868032).

Almost surely, 2^681288302 is an apocalyptic number.

681288302 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is a pronic number, being equal to 26101×26102.

681288302 is a deficient number, since it is larger than the sum of its proper divisors (402488722).

681288302 is a wasteful number, since it uses less digits than its factorization.

681288302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 681288302 is about 26101.4999952110. The cubic root of 681288302 is about 879.9209217853.

The spelling of 681288302 in words is "six hundred eighty-one million, two hundred eighty-eight thousand, three hundred two".