138433482 has 64 divisors (see below), whose sum is σ = 355363200. Its totient is φ = 39479040.

The previous prime is 138433447. The next prime is 138433511. The reversal of 138433482 is 284334831.

It is a happy number.

138433482 is a `hidden beast` number, since 138 + 43 + 3 + 482 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3244 + ... + 16952.

It is an arithmetic number, because the mean of its divisors is an integer number (5552550).

Almost surely, 2^138433482 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138433482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177681600).

138433482 is an abundant number, since it is smaller than the sum of its proper divisors (216929718).

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

138433482 is a wasteful number, since it uses less digits than its factorization.

138433482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13748 (or 13742 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 138433482 is about 11765.7758775187. The cubic root of 138433482 is about 517.3054425120.

It can be divided in two parts, 1 and 38433482, that added together give a palindrome (38433483).

The spelling of 138433482 in words is "one hundred thirty-eight million, four hundred thirty-three thousand, four hundred eighty-two".