820069298 has 32 divisors (see below), whose sum is σ = 1326032640. Its totient is φ = 379209600.

The previous prime is 820069291. The next prime is 820069309. The reversal of 820069298 is 892960028.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (820069291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278711 + ... + 281637.

It is an arithmetic number, because the mean of its divisors is an integer number (41438520).

Almost surely, 2^820069298 is an apocalyptic number.

820069298 is a deficient number, since it is larger than the sum of its proper divisors (505963342).

820069298 is a wasteful number, since it uses less digits than its factorization.

820069298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3122.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 820069298 is about 28636.8520965556. The cubic root of 820069298 is about 936.0165283382.

The spelling of 820069298 in words is "eight hundred twenty million, sixty-nine thousand, two hundred ninety-eight".