138374082 has 80 divisors (see below), whose sum is σ = 386603712. Its totient is φ = 35938080.

The previous prime is 138374081. The next prime is 138374087. The reversal of 138374082 is 280473831.

It is not an unprimeable number, because it can be changed into a prime (138374081) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6928 + ... + 18020.

Almost surely, 2^138374082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138374082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193301856).

138374082 is an abundant number, since it is smaller than the sum of its proper divisors (248229630).

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

138374082 is a wasteful number, since it uses less digits than its factorization.

138374082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11125 (or 11116 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 138374082 is about 11763.2513362590. The cubic root of 138374082 is about 517.2314422560.

The spelling of 138374082 in words is "one hundred thirty-eight million, three hundred seventy-four thousand, eighty-two".