138886484 has 12 divisors (see below), whose sum is σ = 265147008. Its totient is φ = 63130200.

The previous prime is 138886483. The next prime is 138886487. The reversal of 138886484 is 484688831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138886483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1578212 + ... + 1578299.

It is an arithmetic number, because the mean of its divisors is an integer number (22095584).

Almost surely, 2^138886484 is an apocalyptic number.

It is an amenable number.

138886484 is a deficient number, since it is larger than the sum of its proper divisors (126260524).

138886484 is a wasteful number, since it uses less digits than its factorization.

138886484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156526 (or 3156524 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 50.

The square root of 138886484 is about 11785.0109885396. The cubic root of 138886484 is about 517.8690952888.

The spelling of 138886484 in words is "one hundred thirty-eight million, eight hundred eighty-six thousand, four hundred eighty-four".