8104490240 has 432 divisors, whose sum is σ = 26122025664. Its totient is φ = 2374041600.

The previous prime is 8104490203. The next prime is 8104490279. The reversal of 8104490240 is 420944018.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 8104490197 and 8104490206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11728295 + ... + 11728985.

It is an arithmetic number, because the mean of its divisors is an integer number (60467652).

Almost surely, 2^8104490240 is an apocalyptic number.

8104490240 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 8104490240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13061012832).

8104490240 is an abundant number, since it is smaller than the sum of its proper divisors (18017535424).

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

8104490240 is a wasteful number, since it uses less digits than its factorization.

8104490240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 733 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 8104490240 is about 90024.9423215589. The cubic root of 8104490240 is about 2008.6698822635.

The spelling of 8104490240 in words is "eight billion, one hundred four million, four hundred ninety thousand, two hundred forty".