38693938 has 8 divisors (see below), whose sum is σ = 61455132. Its totient is φ = 18208896.

The previous prime is 38693933. The next prime is 38693951. The reversal of 38693938 is 83939683.

It can be written as a sum of positive squares in 2 ways, for example, as 38651089 + 42849 = 6217^2 + 207^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 38693891 and 38693900.

It is not an unprimeable number, because it can be changed into a prime (38693933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568995 + ... + 569062.

Almost surely, 2^38693938 is an apocalyptic number.

38693938 is a deficient number, since it is larger than the sum of its proper divisors (22761194).

38693938 is a wasteful number, since it uses less digits than its factorization.

38693938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138076.

The product of its digits is 839808, while the sum is 49.

The square root of 38693938 is about 6220.4451609190. The cubic root of 38693938 is about 338.2317015929.

The spelling of 38693938 in words is "thirty-eight million, six hundred ninety-three thousand, nine hundred thirty-eight".