138034568 has 96 divisors (see below), whose sum is σ = 320221440. Its totient is φ = 55520640.

The previous prime is 138034541. The next prime is 138034583. The reversal of 138034568 is 865430831.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 449471 + ... + 449777.

It is an arithmetic number, because the mean of its divisors is an integer number (3335640).

Almost surely, 2^138034568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138034568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160110720).

138034568 is an abundant number, since it is smaller than the sum of its proper divisors (182186872).

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

138034568 is a wasteful number, since it uses less digits than its factorization.

138034568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 138034568 is about 11748.8113441318. The cubic root of 138034568 is about 516.8080702571.

The spelling of 138034568 in words is "one hundred thirty-eight million, thirty-four thousand, five hundred sixty-eight".