138000328 has 16 divisors (see below), whose sum is σ = 267673500. Its totient is φ = 66620736.

The previous prime is 138000307. The next prime is 138000329. The reversal of 138000328 is 823000831.

138000328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 127644804 + 10355524 = 11298^2 + 3218^2 .

It is not an unprimeable number, because it can be changed into a prime (138000329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297183 + ... + 297646.

Almost surely, 2^138000328 is an apocalyptic number.

It is an amenable number.

138000328 is a deficient number, since it is larger than the sum of its proper divisors (129673172).

138000328 is a wasteful number, since it uses less digits than its factorization.

138000328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594864 (or 594860 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 138000328 is about 11747.3540850695. The cubic root of 138000328 is about 516.7653346537.

The spelling of 138000328 in words is "one hundred thirty-eight million, three hundred twenty-eight", and thus it is an aban number.