38849139 has 56 divisors (see below), whose sum is σ = 69672192. Its totient is φ = 21170160.

The previous prime is 38849137. The next prime is 38849147. The reversal of 38849139 is 93194883.

It is not a de Polignac number, because 38849139 - 2¹ = 38849137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38849094 and 38849103.

It is not an unprimeable number, because it can be changed into a prime (38849137) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 117204 + ... + 117534.

Almost surely, 2^38849139 is an apocalyptic number.

38849139 is a deficient number, since it is larger than the sum of its proper divisors (30823053).

38849139 is an equidigital number, since it uses as much as digits as its factorization.

38849139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 364 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 38849139 is about 6232.9077483948. The cubic root of 38849139 is about 338.6833129894.

The spelling of 38849139 in words is "thirty-eight million, eight hundred forty-nine thousand, one hundred thirty-nine".