38139230 has 16 divisors (see below), whose sum is σ = 70506720. Its totient is φ = 14843232.

The previous prime is 38139223. The next prime is 38139239. The reversal of 38139230 is 3293183.

It is a junction number, because it is equal to n+sod(n) for n = 38139193 and 38139202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38139239) 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, 51170 + ... + 51909.

It is an arithmetic number, because the mean of its divisors is an integer number (4406670).

Almost surely, 2^38139230 is an apocalyptic number.

38139230 is a deficient number, since it is larger than the sum of its proper divisors (32367490).

38139230 is a wasteful number, since it uses less digits than its factorization.

38139230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103123.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 38139230 is about 6175.6967218282. The cubic root of 38139230 is about 336.6076435866.

The spelling of 38139230 in words is "thirty-eight million, one hundred thirty-nine thousand, two hundred thirty".