538918338 has 32 divisors (see below), whose sum is σ = 1233745920. Its totient is φ = 153735120.

The previous prime is 538918333. The next prime is 538918423. The reversal of 538918338 is 833819835.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (538918333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17943 + ... + 37413.

It is an arithmetic number, because the mean of its divisors is an integer number (38554560).

Almost surely, 2^538918338 is an apocalyptic number.

538918338 is an abundant number, since it is smaller than the sum of its proper divisors (694827582).

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

538918338 is a wasteful number, since it uses less digits than its factorization.

538918338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20142.

The product of its digits is 622080, while the sum is 48.

The square root of 538918338 is about 23214.6147501956. The cubic root of 538918338 is about 813.7812025761.

The spelling of 538918338 in words is "five hundred thirty-eight million, nine hundred eighteen thousand, three hundred thirty-eight".