227820072 has 32 divisors (see below), whose sum is σ = 570739680. Its totient is φ = 75781440.

The previous prime is 227820071. The next prime is 227820097. The reversal of 227820072 is 270028722.

It is not an unprimeable number, because it can be changed into a prime (227820071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2118 + ... + 21450.

It is an arithmetic number, because the mean of its divisors is an integer number (17835615).

Almost surely, 2^227820072 is an apocalyptic number.

It is an amenable number.

227820072 is an abundant number, since it is smaller than the sum of its proper divisors (342919608).

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

227820072 is a wasteful number, since it uses less digits than its factorization.

227820072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19833 (or 19829 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 227820072 is about 15093.7096831760. The cubic root of 227820072 is about 610.7507302664.

Adding to 227820072 its reverse (270028722), we get a palindrome (497848794).

The spelling of 227820072 in words is "two hundred twenty-seven million, eight hundred twenty thousand, seventy-two".