138608360 has 64 divisors (see below), whose sum is σ = 343699200. Its totient is φ = 49888000.

The previous prime is 138608341. The next prime is 138608377. The reversal of 138608360 is 63806831.

It is a happy number.

138608360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 138608360.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42881 + ... + 45999.

It is an arithmetic number, because the mean of its divisors is an integer number (5370300).

Almost surely, 2^138608360 is an apocalyptic number.

138608360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138608360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171849600).

138608360 is an abundant number, since it is smaller than the sum of its proper divisors (205090840).

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

138608360 is a wasteful number, since it uses less digits than its factorization.

138608360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242 (or 3238 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 138608360 is about 11773.2051710654. The cubic root of 138608360 is about 517.5231819218.

The spelling of 138608360 in words is "one hundred thirty-eight million, six hundred eight thousand, three hundred sixty".