9344140138 has 8 divisors (see below), whose sum is σ = 14018624100. Its totient is φ = 4671265440.

The previous prime is 9344140133. The next prime is 9344140147. The reversal of 9344140138 is 8310414439.

It can be written as a sum of positive squares in 2 ways, for example, as 8851610889 + 492529249 = 94083^2 + 22193^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 9344140097 and 9344140106.

It is not an unprimeable number, because it can be changed into a prime (9344140133) 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, 387693 + ... + 411088.

Almost surely, 2^9344140138 is an apocalyptic number.

9344140138 is a deficient number, since it is larger than the sum of its proper divisors (4674483962).

9344140138 is a wasteful number, since it uses less digits than its factorization.

9344140138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804632.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 9344140138 is about 96665.0926550014. The cubic root of 9344140138 is about 2106.2655008378.

The spelling of 9344140138 in words is "nine billion, three hundred forty-four million, one hundred forty thousand, one hundred thirty-eight".