138441876 has 24 divisors (see below), whose sum is σ = 337076544. Its totient is φ = 44140800.

The previous prime is 138441859. The next prime is 138441893. The reversal of 138441876 is 678144831.

It is an interprime number because it is at equal distance from previous prime (138441859) and next prime (138441893).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250525 + ... + 251076.

It is an arithmetic number, because the mean of its divisors is an integer number (14044856).

Almost surely, 2^138441876 is an apocalyptic number.

It is an amenable number.

138441876 is an abundant number, since it is smaller than the sum of its proper divisors (198634668).

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

138441876 is a wasteful number, since it uses less digits than its factorization.

138441876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501631 (or 501629 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 138441876 is about 11766.1325846686. The cubic root of 138441876 is about 517.3158980127.

The spelling of 138441876 in words is "one hundred thirty-eight million, four hundred forty-one thousand, eight hundred seventy-six".