227206820 has 12 divisors (see below), whose sum is σ = 477134364. Its totient is φ = 90882720.

The previous prime is 227206799. The next prime is 227206829. The reversal of 227206820 is 28602722.

227206820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 150749284 + 76457536 = 12278^2 + 8744^2 .

It is not an unprimeable number, because it can be changed into a prime (227206829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5680151 + ... + 5680190.

It is an arithmetic number, because the mean of its divisors is an integer number (39761197).

Almost surely, 2^227206820 is an apocalyptic number.

227206820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227206820 is an abundant number, since it is smaller than the sum of its proper divisors (249927544).

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

227206820 is a wasteful number, since it uses less digits than its factorization.

227206820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11360350 (or 11360348 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 227206820 is about 15073.3811734461. The cubic root of 227206820 is about 610.2022262412.

The spelling of 227206820 in words is "two hundred twenty-seven million, two hundred six thousand, eight hundred twenty".