813860226 has 24 divisors (see below), whose sum is σ = 1804374000. Its totient is φ = 264977496.

The previous prime is 813860213. The next prime is 813860273. The reversal of 813860226 is 622068318.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 524976 + ... + 526523.

It is an arithmetic number, because the mean of its divisors is an integer number (75182250).

Almost surely, 2^813860226 is an apocalyptic number.

813860226 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

813860226 is an abundant number, since it is smaller than the sum of its proper divisors (990513774).

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

813860226 is a wasteful number, since it uses less digits than its factorization.

813860226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051550 (or 1051547 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 813860226 is about 28528.2355921287. The cubic root of 813860226 is about 933.6482228601.

The spelling of 813860226 in words is "eight hundred thirteen million, eight hundred sixty thousand, two hundred twenty-six".