227885220 has 72 divisors (see below), whose sum is σ = 709955064. Its totient is φ = 59125248.

The previous prime is 227885201. The next prime is 227885237. The reversal of 227885220 is 22588722.

It can be written as a sum of positive squares in 4 ways, for example, as 126157824 + 101727396 = 11232^2 + 10086^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10449 + ... + 23768.

It is an arithmetic number, because the mean of its divisors is an integer number (9860487).

Almost surely, 2^227885220 is an apocalyptic number.

227885220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227885220 is an abundant number, since it is smaller than the sum of its proper divisors (482069844).

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

227885220 is a wasteful number, since it uses less digits than its factorization.

227885220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34269 (or 34264 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 227885220 is about 15095.8676464786. The cubic root of 227885220 is about 610.8089419889.

The spelling of 227885220 in words is "two hundred twenty-seven million, eight hundred eighty-five thousand, two hundred twenty".