8279855040 has 224 divisors, whose sum is σ = 26918692416. Its totient is φ = 2155479040.

The previous prime is 8279855039. The next prime is 8279855137. The reversal of 8279855040 is 405589728.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17960410 + ... + 17960870.

It is an arithmetic number, because the mean of its divisors is an integer number (120172734).

Almost surely, 2^8279855040 is an apocalyptic number.

8279855040 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 8279855040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13459346208).

8279855040 is an abundant number, since it is smaller than the sum of its proper divisors (18638837376).

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

8279855040 is a wasteful number, since it uses less digits than its factorization.

8279855040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 48.

The square root of 8279855040 is about 90993.7087935204. The cubic root of 8279855040 is about 2023.0544777234.

The spelling of 8279855040 in words is "eight billion, two hundred seventy-nine million, eight hundred fifty-five thousand, forty".