538216227 has 12 divisors (see below), whose sum is σ = 777822760. Its totient is φ = 358626528.

The previous prime is 538216207. The next prime is 538216241. The reversal of 538216227 is 722612835.

538216227 is a `hidden beast` number, since 5 + 3 + 8 + 21 + 622 + 7 = 666.

It is not a de Polignac number, because 538216227 - 2⁶ = 538216163 is a prime.

It is a super-2 number, since 2×538216227² = 579353414012231058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 538216191 and 538216200.

It is not an unprimeable number, because it can be changed into a prime (538216207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4488 + ... + 33114.

Almost surely, 2^538216227 is an apocalyptic number.

538216227 is a deficient number, since it is larger than the sum of its proper divisors (239606533).

538216227 is a wasteful number, since it uses less digits than its factorization.

538216227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30722 (or 30719 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 538216227 is about 23199.4876452046. The cubic root of 538216227 is about 813.4276468201.

It can be divided in two parts, 5382 and 16227, that added together give a square (21609 = 147²).

The spelling of 538216227 in words is "five hundred thirty-eight million, two hundred sixteen thousand, two hundred twenty-seven".