136340238 has 32 divisors (see below), whose sum is σ = 303920640. Its totient is φ = 40521600.

The previous prime is 136340233. The next prime is 136340287. The reversal of 136340238 is 832043631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136340233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33238 + ... + 37113.

It is an arithmetic number, because the mean of its divisors is an integer number (9497520).

Almost surely, 2^136340238 is an apocalyptic number.

136340238 is an abundant number, since it is smaller than the sum of its proper divisors (167580402).

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

136340238 is a wasteful number, since it uses less digits than its factorization.

136340238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70392.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 136340238 is about 11676.4822613662. The cubic root of 136340238 is about 514.6848079199.

Adding to 136340238 its reverse (832043631), we get a palindrome (968383869).

The spelling of 136340238 in words is "one hundred thirty-six million, three hundred forty thousand, two hundred thirty-eight".