38139848 has 8 divisors (see below), whose sum is σ = 71512230. Its totient is φ = 19069920.

The previous prime is 38139847. The next prime is 38139869. The reversal of 38139848 is 84893183.

It can be written as a sum of positive squares in only one way, i.e., 34597924 + 3541924 = 5882^2 + 1882^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 38139799 and 38139808.

It is not an unprimeable number, because it can be changed into a prime (38139847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2383733 + ... + 2383748.

Almost surely, 2^38139848 is an apocalyptic number.

It is an amenable number.

38139848 is a deficient number, since it is larger than the sum of its proper divisors (33372382).

38139848 is a wasteful number, since it uses less digits than its factorization.

38139848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4767487 (or 4767483 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The square root of 38139848 is about 6175.7467564660. The cubic root of 38139848 is about 336.6094616831.

The spelling of 38139848 in words is "thirty-eight million, one hundred thirty-nine thousand, eight hundred forty-eight".