226502820 has 36 divisors (see below), whose sum is σ = 687059100. Its totient is φ = 60400704.

The previous prime is 226502777. The next prime is 226502879. The reversal of 226502820 is 28205622.

226502820 is a `hidden beast` number, since 2 + 2 + 650 + 2 + 8 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 78004224 + 148498596 = 8832^2 + 12186^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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, 628995 + ... + 629354.

It is an arithmetic number, because the mean of its divisors is an integer number (19084975).

Almost surely, 2^226502820 is an apocalyptic number.

226502820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226502820 is an abundant number, since it is smaller than the sum of its proper divisors (460556280).

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

226502820 is a wasteful number, since it uses less digits than its factorization.

226502820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258364 (or 1258359 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 226502820 is about 15050.0106312255. The cubic root of 226502820 is about 609.5713372867.

The spelling of 226502820 in words is "two hundred twenty-six million, five hundred two thousand, eight hundred twenty".