138385364 has 24 divisors (see below), whose sum is σ = 269219328. Its totient is φ = 61809120.

The previous prime is 138385349. The next prime is 138385367. The reversal of 138385364 is 463583831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138385367) 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, 41312 + ... + 44535.

It is an arithmetic number, because the mean of its divisors is an integer number (11217472).

Almost surely, 2^138385364 is an apocalyptic number.

It is an amenable number.

138385364 is a deficient number, since it is larger than the sum of its proper divisors (130833964).

138385364 is a wasteful number, since it uses less digits than its factorization.

138385364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85895 (or 85893 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 138385364 is about 11763.7308707739. The cubic root of 138385364 is about 517.2454989504.

The spelling of 138385364 in words is "one hundred thirty-eight million, three hundred eighty-five thousand, three hundred sixty-four".