8388215040 has 144 divisors (see below), whose sum is σ = 26909668800. Its totient is φ = 2226855936.

The previous prime is 8388215029. The next prime is 8388215047. The reversal of 8388215040 is 405128838.

It is a self number, because there is not a number n which added to its sum of digits gives 8388215040.

It is not an unprimeable number, because it can be changed into a prime (8388215047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 874591 + ... + 884129.

It is an arithmetic number, because the mean of its divisors is an integer number (186872700).

Almost surely, 2^8388215040 is an apocalyptic number.

8388215040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8388215040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13454834400).

8388215040 is an abundant number, since it is smaller than the sum of its proper divisors (18521453760).

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

8388215040 is a wasteful number, since it uses less digits than its factorization.

8388215040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9792 (or 9778 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 8388215040 is about 91587.1991055519. The cubic root of 8388215040 is about 2031.8416186721.

The spelling of 8388215040 in words is "eight billion, three hundred eighty-eight million, two hundred fifteen thousand, forty".