538333398 has 16 divisors (see below), whose sum is σ = 1196296560. Its totient is φ = 179444448.

The previous prime is 538333391. The next prime is 538333421. The reversal of 538333398 is 893333835.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538333391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4984515 + ... + 4984622.

It is an arithmetic number, because the mean of its divisors is an integer number (74768535).

Almost surely, 2^538333398 is an apocalyptic number.

538333398 is an abundant number, since it is smaller than the sum of its proper divisors (657963162).

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

538333398 is a wasteful number, since it uses less digits than its factorization.

538333398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9969148 (or 9969142 counting only the distinct ones).

The product of its digits is 699840, while the sum is 45.

The square root of 538333398 is about 23202.0128006171. The cubic root of 538333398 is about 813.4866709387.

It can be divided in two parts, 5383 and 33398, that added together give a triangular number (38781 = T₂₇₈).

The spelling of 538333398 in words is "five hundred thirty-eight million, three hundred thirty-three thousand, three hundred ninety-eight".