538317938 has 4 divisors (see below), whose sum is σ = 807476910. Its totient is φ = 269158968.

The previous prime is 538317917. The next prime is 538317959. The reversal of 538317938 is 839713835.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (538317917) and next prime (538317959).

It can be written as a sum of positive squares in only one way, i.e., 472497169 + 65820769 = 21737^2 + 8113^2 .

It is a junction number, because it is equal to n+sod(n) for n = 538317892 and 538317901.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134579483 + ... + 134579486.

Almost surely, 2^538317938 is an apocalyptic number.

538317938 is a deficient number, since it is larger than the sum of its proper divisors (269158972).

538317938 is a wasteful number, since it uses less digits than its factorization.

538317938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269158971.

The product of its digits is 544320, while the sum is 47.

The square root of 538317938 is about 23201.6796374745. The cubic root of 538317938 is about 813.4788835561.

The spelling of 538317938 in words is "five hundred thirty-eight million, three hundred seventeen thousand, nine hundred thirty-eight".