39238138 has 16 divisors (see below), whose sum is σ = 62726400. Its totient is φ = 18365776.

The previous prime is 39238123. The next prime is 39238139. The reversal of 39238138 is 83183293.

It is a junction number, because it is equal to n+sod(n) for n = 39238097 and 39238106.

It is not an unprimeable number, because it can be changed into a prime (39238139) 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, 6913 + ... + 11236.

It is an arithmetic number, because the mean of its divisors is an integer number (3920400).

Almost surely, 2^39238138 is an apocalyptic number.

39238138 is a deficient number, since it is larger than the sum of its proper divisors (23488262).

39238138 is a wasteful number, since it uses less digits than its factorization.

39238138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18221.

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

The square root of 39238138 is about 6264.0352808713. The cubic root of 39238138 is about 339.8099803265.

The spelling of 39238138 in words is "thirty-nine million, two hundred thirty-eight thousand, one hundred thirty-eight".