9910640394 has 12 divisors (see below), whose sum is σ = 21473054226. Its totient is φ = 3303546792.

The previous prime is 9910640393. The next prime is 9910640429. The reversal of 9910640394 is 4930460199.

9910640394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9041157225 + 869483169 = 95085^2 + 29487^2 .

It is not an unprimeable number, because it can be changed into a prime (9910640393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 275295549 + ... + 275295584.

Almost surely, 2^9910640394 is an apocalyptic number.

9910640394 is an abundant number, since it is smaller than the sum of its proper divisors (11562413832).

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

9910640394 is a wasteful number, since it uses less digits than its factorization.

9910640394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550591141 (or 550591138 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 9910640394 is about 99552.1993428573. The cubic root of 9910640394 is about 2147.9981651098.

The spelling of 9910640394 in words is "nine billion, nine hundred ten million, six hundred forty thousand, three hundred ninety-four".