8104621240 has 32 divisors (see below), whose sum is σ = 18440298000. Its totient is φ = 3205421824.

The previous prime is 8104621181. The next prime is 8104621279. The reversal of 8104621240 is 421264018.

It is a junction number, because it is equal to n+sod(n) for n = 8104621199 and 8104621208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1134730 + ... + 1141849.

Almost surely, 2^8104621240 is an apocalyptic number.

It is an amenable number.

8104621240 is an abundant number, since it is smaller than the sum of its proper divisors (10335676760).

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

8104621240 is a wasteful number, since it uses less digits than its factorization.

8104621240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276679 (or 2276675 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 8104621240 is about 90025.6698947584. The cubic root of 8104621240 is about 2008.6807048375.

Adding to 8104621240 its reverse (421264018), we get a palindrome (8525885258).

The spelling of 8104621240 in words is "eight billion, one hundred four million, six hundred twenty-one thousand, two hundred forty".