8923640340 has 96 divisors (see below), whose sum is σ = 26699016960. Its totient is φ = 2219083776.

The previous prime is 8923640321. The next prime is 8923640351. The reversal of 8923640340 is 430463298.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71049 + ... + 151311.

It is an arithmetic number, because the mean of its divisors is an integer number (278114760).

Almost surely, 2^8923640340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8923640340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13349508480).

8923640340 is an abundant number, since it is smaller than the sum of its proper divisors (17775376620).

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

8923640340 is a wasteful number, since it uses less digits than its factorization.

8923640340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80401 (or 80399 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 8923640340 is about 94465.0217805511. The cubic root of 8923640340 is about 2074.1843479265.

The spelling of 8923640340 in words is "eight billion, nine hundred twenty-three million, six hundred forty thousand, three hundred forty".