855280480 has 48 divisors (see below), whose sum is σ = 2032763040. Its totient is φ = 340052992.

The previous prime is 855280457. The next prime is 855280487. The reversal of 855280480 is 84082558.

It is a happy number.

855280480 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855280487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10716 + ... + 42724.

It is an arithmetic number, because the mean of its divisors is an integer number (42349230).

Almost surely, 2^855280480 is an apocalyptic number.

855280480 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 855280480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1016381520).

855280480 is an abundant number, since it is smaller than the sum of its proper divisors (1177482560).

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

855280480 is a wasteful number, since it uses less digits than its factorization.

855280480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32191 (or 32183 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 40.

The square root of 855280480 is about 29245.1787479578. The cubic root of 855280480 is about 949.2257699288.

The spelling of 855280480 in words is "eight hundred fifty-five million, two hundred eighty thousand, four hundred eighty".