227070820 has 12 divisors (see below), whose sum is σ = 476848764. Its totient is φ = 90828320.

The previous prime is 227070797. The next prime is 227070821. The reversal of 227070820 is 28070722.

It can be written as a sum of positive squares in 2 ways, for example, as 98883136 + 128187684 = 9944^2 + 11322^2 .

It is a super-2 number, since 2×227070820² = 103122314590944800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (227070821) 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 3 ways as a sum of consecutive naturals, for example, 5676751 + ... + 5676790.

It is an arithmetic number, because the mean of its divisors is an integer number (39737397).

Almost surely, 2^227070820 is an apocalyptic number.

227070820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227070820 is an abundant number, since it is smaller than the sum of its proper divisors (249777944).

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

227070820 is a wasteful number, since it uses less digits than its factorization.

227070820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11353550 (or 11353548 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 227070820 is about 15068.8692342856. The cubic root of 227070820 is about 610.0804516303.

The spelling of 227070820 in words is "two hundred twenty-seven million, seventy thousand, eight hundred twenty".