7908215040 has 432 divisors, whose sum is σ = 31613452416. Its totient is φ = 1803878400.

The previous prime is 7908214981. The next prime is 7908215047. The reversal of 7908215040 is 405128097.

7908215040 is a `hidden beast` number, since 79 + 0 + 82 + 1 + 504 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7908214986 and 7908215004.

It is not an unprimeable number, because it can be changed into a prime (7908215047) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2152405 + ... + 2156075.

It is an arithmetic number, because the mean of its divisors is an integer number (73179288).

Almost surely, 2^7908215040 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 7908215040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15806726208).

7908215040 is an abundant number, since it is smaller than the sum of its proper divisors (23705237376).

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

7908215040 is a wasteful number, since it uses less digits than its factorization.

7908215040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3726 (or 3709 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 7908215040 is about 88928.1453759157. The cubic root of 7908215040 is about 1992.3218137835.

The spelling of 7908215040 in words is "seven billion, nine hundred eight million, two hundred fifteen thousand, forty".