10785280 has 80 divisors (see below), whose sum is σ = 28283904. Its totient is φ = 3911680.

The previous prime is 10785277. The next prime is 10785289. The reversal of 10785280 is 8258701.

It is a tau number, because it is divible by the number of its divisors (80).

It is a nialpdrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10785289) 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, 27969 + ... + 28351.

Almost surely, 2^10785280 is an apocalyptic number.

10785280 is a gapful number since it is divisible by the number (10) 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 10785280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14141952).

10785280 is an abundant number, since it is smaller than the sum of its proper divisors (17498624).

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

10785280 is an equidigital number, since it uses as much as digits as its factorization.

10785280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 10785280 is about 3284.0950047159. The cubic root of 10785280 is about 220.9414202894.

The spelling of 10785280 in words is "ten million, seven hundred eighty-five thousand, two hundred eighty".