2805480 has 48 divisors (see below), whose sum is σ = 9118980. Its totient is φ = 748032.

The previous prime is 2805461. The next prime is 2805487. The reversal of 2805480 is 845082.

2805480 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2643876 + 161604 = 1626^2 + 402^2 .

It is not an unprimeable number, because it can be changed into a prime (2805487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3537 + ... + 4256.

2^2805480 is an apocalyptic number.

2805480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2805480 is an abundant number, since it is smaller than the sum of its proper divisors (6313500).

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

2805480 is a wasteful number, since it uses less digits than its factorization.

2805480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7810 (or 7803 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 2805480 is about 1674.9567158587. The cubic root of 2805480 is about 141.0378651889.

The spelling of 2805480 in words is "two million, eight hundred five thousand, four hundred eighty".