8365342440 has 256 divisors, whose sum is σ = 30979468800. Its totient is φ = 1759739904.

The previous prime is 8365342429. The next prime is 8365342441. The reversal of 8365342440 is 442435638.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (8365342441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4465344 + ... + 4467216.

It is an arithmetic number, because the mean of its divisors is an integer number (121013550).

Almost surely, 2^8365342440 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 8365342440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15489734400).

8365342440 is an abundant number, since it is smaller than the sum of its proper divisors (22614126360).

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

8365342440 is a wasteful number, since it uses less digits than its factorization.

8365342440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316 (or 2312 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

The square root of 8365342440 is about 91462.2459816071. The cubic root of 8365342440 is about 2029.9931600472.

The spelling of 8365342440 in words is "eight billion, three hundred sixty-five million, three hundred forty-two thousand, four hundred forty".