138026338 has 8 divisors (see below), whose sum is σ = 207666000. Its totient is φ = 68804340.

The previous prime is 138026333. The next prime is 138026389. The reversal of 138026338 is 833620831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (138026333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103588 + ... + 104911.

It is an arithmetic number, because the mean of its divisors is an integer number (25958250).

Almost surely, 2^138026338 is an apocalyptic number.

138026338 is a deficient number, since it is larger than the sum of its proper divisors (69639662).

138026338 is a wasteful number, since it uses less digits than its factorization.

138026338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208832.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 138026338 is about 11748.4610907131. The cubic root of 138026338 is about 516.7977988808.

The spelling of 138026338 in words is "one hundred thirty-eight million, twenty-six thousand, three hundred thirty-eight".