138827320 has 16 divisors (see below), whose sum is σ = 312361560. Its totient is φ = 55530912.

The previous prime is 138827317. The next prime is 138827363. The reversal of 138827320 is 23728831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1735302 + ... + 1735381.

Almost surely, 2^138827320 is an apocalyptic number.

138827320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138827320 is an abundant number, since it is smaller than the sum of its proper divisors (173534240).

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

138827320 is a wasteful number, since it uses less digits than its factorization.

138827320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3470694 (or 3470690 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 138827320 is about 11782.5005834925. The cubic root of 138827320 is about 517.7955494742.

The spelling of 138827320 in words is "one hundred thirty-eight million, eight hundred twenty-seven thousand, three hundred twenty".