138410916 has 48 divisors (see below), whose sum is σ = 378107520. Its totient is φ = 38580480.

The previous prime is 138410893. The next prime is 138410927. The reversal of 138410916 is 619014831.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16651 + ... + 23538.

It is an arithmetic number, because the mean of its divisors is an integer number (7877240).

Almost surely, 2^138410916 is an apocalyptic number.

It is an amenable number.

138410916 is an abundant number, since it is smaller than the sum of its proper divisors (239696604).

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

138410916 is a wasteful number, since it uses less digits than its factorization.

138410916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40244 (or 40242 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 138410916 is about 11764.8168706529. The cubic root of 138410916 is about 517.2773323833.

The spelling of 138410916 in words is "one hundred thirty-eight million, four hundred ten thousand, nine hundred sixteen".