538227636 has 12 divisors (see below), whose sum is σ = 1255864512. Its totient is φ = 179409208.

The previous prime is 538227629. The next prime is 538227661. The reversal of 538227636 is 636722835.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22426140 + ... + 22426163.

It is an arithmetic number, because the mean of its divisors is an integer number (104655376).

Almost surely, 2^538227636 is an apocalyptic number.

It is an amenable number.

538227636 is an abundant number, since it is smaller than the sum of its proper divisors (717636876).

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

538227636 is a wasteful number, since it uses less digits than its factorization.

538227636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44852310 (or 44852308 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The square root of 538227636 is about 23199.7335329525. The cubic root of 538227636 is about 813.4333944050.

The spelling of 538227636 in words is "five hundred thirty-eight million, two hundred twenty-seven thousand, six hundred thirty-six".