538392388 has 6 divisors (see below), whose sum is σ = 942186686. Its totient is φ = 269196192.

The previous prime is 538392367. The next prime is 538392403. The reversal of 538392388 is 883293835.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 501401664 + 36990724 = 22392^2 + 6082^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67299045 + ... + 67299052.

Almost surely, 2^538392388 is an apocalyptic number.

It is an amenable number.

538392388 is a deficient number, since it is larger than the sum of its proper divisors (403794298).

538392388 is a wasteful number, since it uses less digits than its factorization.

538392388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134598101 (or 134598099 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 49.

The square root of 538392388 is about 23203.2839917112. The cubic root of 538392388 is about 813.5163835209.

The spelling of 538392388 in words is "five hundred thirty-eight million, three hundred ninety-two thousand, three hundred eighty-eight".