538366338 has 20 divisors (see below), whose sum is σ = 1206339750. Its totient is φ = 179455392.

The previous prime is 538366337. The next prime is 538366351. The reversal of 538366338 is 833663835.

538366338 is a `hidden beast` number, since 5 + 3 + 8 + 3 + 6 + 633 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 473193009 + 65173329 = 21753^2 + 8073^2 .

It is a junction number, because it is equal to n+sod(n) for n = 538366293 and 538366302.

It is not an unprimeable number, because it can be changed into a prime (538366331) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1661463 + ... + 1661786.

Almost surely, 2^538366338 is an apocalyptic number.

538366338 is an abundant number, since it is smaller than the sum of its proper divisors (667973412).

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

538366338 is a wasteful number, since it uses less digits than its factorization.

538366338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323263 (or 3323254 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The square root of 538366338 is about 23202.7226419660. The cubic root of 538366338 is about 813.5032627041.

The spelling of 538366338 in words is "five hundred thirty-eight million, three hundred sixty-six thousand, three hundred thirty-eight".