2806895280 has 160 divisors (see below), whose sum is σ = 10070784000. Its totient is φ = 633424896.

The previous prime is 2806895269. The next prime is 2806895293. The reversal of 2806895280 is 825986082.

2806895280 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2806895280² = 15757322225772556800, which contains 22 as substring.

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

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, 122146 + ... + 143294.

It is an arithmetic number, because the mean of its divisors is an integer number (62942400).

Almost surely, 2^2806895280 is an apocalyptic number.

2806895280 is a gapful number since it is divisible by the number (20) 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 2806895280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5035392000).

2806895280 is an abundant number, since it is smaller than the sum of its proper divisors (7263888720).

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

2806895280 is a wasteful number, since it uses less digits than its factorization.

2806895280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21251 (or 21245 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The square root of 2806895280 is about 52980.1404301650. The cubic root of 2806895280 is about 1410.6157765089.

The spelling of 2806895280 in words is "two billion, eight hundred six million, eight hundred ninety-five thousand, two hundred eighty".