9236781338 has 4 divisors (see below), whose sum is σ = 13855172010. Its totient is φ = 4618390668.

The previous prime is 9236781331. The next prime is 9236781349. The reversal of 9236781338 is 8331876329.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8331876329 = 7 ⋅1190268047.

It can be written as a sum of positive squares in only one way, i.e., 8120352769 + 1116428569 = 90113^2 + 33413^2 .

It is not an unprimeable number, because it can be changed into a prime (9236781331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2309195333 + ... + 2309195336.

Almost surely, 2^9236781338 is an apocalyptic number.

9236781338 is a deficient number, since it is larger than the sum of its proper divisors (4618390672).

9236781338 is a wasteful number, since it uses less digits than its factorization.

9236781338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4618390671.

The product of its digits is 1306368, while the sum is 50.

The square root of 9236781338 is about 96108.1751881701. The cubic root of 9236781338 is about 2098.1678152437.

The spelling of 9236781338 in words is "nine billion, two hundred thirty-six million, seven hundred eighty-one thousand, three hundred thirty-eight".