138908848 has 40 divisors (see below), whose sum is σ = 305102000. Its totient is φ = 60735744.

The previous prime is 138908843. The next prime is 138908851. The reversal of 138908848 is 848809831.

It is not an unprimeable number, because it can be changed into a prime (138908843) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13623 + ... + 21526.

It is an arithmetic number, because the mean of its divisors is an integer number (7627550).

Almost surely, 2^138908848 is an apocalyptic number.

It is an amenable number.

138908848 is an abundant number, since it is smaller than the sum of its proper divisors (166193152).

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

138908848 is a wasteful number, since it uses less digits than its factorization.

138908848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35189 (or 35183 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 49.

The square root of 138908848 is about 11785.9597827245. The cubic root of 138908848 is about 517.8968901770.

The spelling of 138908848 in words is "one hundred thirty-eight million, nine hundred eight thousand, eight hundred forty-eight".