818145210 has 32 divisors (see below), whose sum is σ = 1966472640. Its totient is φ = 217847168.

The previous prime is 818145203. The next prime is 818145257. The reversal of 818145210 is 12541818.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is an unprimeable number.

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, 526 + ... + 40454.

It is an arithmetic number, because the mean of its divisors is an integer number (61452270).

Almost surely, 2^818145210 is an apocalyptic number.

818145210 is an abundant number, since it is smaller than the sum of its proper divisors (1148327430).

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

818145210 is a wasteful number, since it uses less digits than its factorization.

818145210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40622.

The product of its (nonzero) digits is 2560, while the sum is 30.

The square root of 818145210 is about 28603.2377537928. The cubic root of 818145210 is about 935.2839119896.

The spelling of 818145210 in words is "eight hundred eighteen million, one hundred forty-five thousand, two hundred ten".