39382138 has 16 divisors (see below), whose sum is σ = 60186240. Its totient is φ = 19322800.

The previous prime is 39382129. The next prime is 39382139. The reversal of 39382138 is 83128393.

It is a junction number, because it is equal to n+sod(n) for n = 39382097 and 39382106.

It is not an unprimeable number, because it can be changed into a prime (39382139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37683 + ... + 38713.

It is an arithmetic number, because the mean of its divisors is an integer number (3761640).

Almost surely, 2^39382138 is an apocalyptic number.

39382138 is a deficient number, since it is larger than the sum of its proper divisors (20804102).

39382138 is a wasteful number, since it uses less digits than its factorization.

39382138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373.

The product of its digits is 31104, while the sum is 37.

The square root of 39382138 is about 6275.5189426851. The cubic root of 39382138 is about 340.2251622739.

It can be divided in two parts, 3938213 and 8, that added together give a triangular number (3938221 = T₂₈₀₆).

The spelling of 39382138 in words is "thirty-nine million, three hundred eighty-two thousand, one hundred thirty-eight".