9443355138 has 64 divisors (see below), whose sum is σ = 24047781120. Its totient is φ = 2690827776.

The previous prime is 9443355137. The next prime is 9443355221. The reversal of 9443355138 is 8315533449.

9443355138 is a `hidden beast` number, since 94 + 4 + 3 + 3 + 551 + 3 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 9443355093 and 9443355102.

It is not an unprimeable number, because it can be changed into a prime (9443355137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107506 + ... + 174482.

It is an arithmetic number, because the mean of its divisors is an integer number (375746580).

Almost surely, 2^9443355138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9443355138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12023890560).

9443355138 is an abundant number, since it is smaller than the sum of its proper divisors (14604425982).

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

9443355138 is a wasteful number, since it uses less digits than its factorization.

9443355138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67368 (or 67362 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The square root of 9443355138 is about 97176.9269837239. The cubic root of 9443355138 is about 2113.6939655690.

The spelling of 9443355138 in words is "nine billion, four hundred forty-three million, three hundred fifty-five thousand, one hundred thirty-eight".