9321438394 has 8 divisors (see below), whose sum is σ = 13985283060. Its totient is φ = 4659677376.

The previous prime is 9321438341. The next prime is 9321438433. The reversal of 9321438394 is 4938341239.

It can be written as a sum of positive squares in 2 ways, for example, as 9175149369 + 146289025 = 95787^2 + 12095^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509679 + ... + 527650.

Almost surely, 2^9321438394 is an apocalyptic number.

9321438394 is a deficient number, since it is larger than the sum of its proper divisors (4663844666).

9321438394 is a wasteful number, since it uses less digits than its factorization.

9321438394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041824.

The product of its digits is 559872, while the sum is 46.

The square root of 9321438394 is about 96547.5965210942. The cubic root of 9321438394 is about 2104.5583819014.

The spelling of 9321438394 in words is "nine billion, three hundred twenty-one million, four hundred thirty-eight thousand, three hundred ninety-four".