138360380 has 12 divisors (see below), whose sum is σ = 290556840. Its totient is φ = 55344144.

The previous prime is 138360373. The next prime is 138360401. The reversal of 138360380 is 83063831.

It is a happy number.

138360380 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3458990 + ... + 3459029.

It is an arithmetic number, because the mean of its divisors is an integer number (24213070).

Almost surely, 2^138360380 is an apocalyptic number.

138360380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138360380 is an abundant number, since it is smaller than the sum of its proper divisors (152196460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138360380 is a wasteful number, since it uses less digits than its factorization.

138360380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6918028 (or 6918026 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 138360380 is about 11762.6689148339. The cubic root of 138360380 is about 517.2143693594.

The spelling of 138360380 in words is "one hundred thirty-eight million, three hundred sixty thousand, three hundred eighty".