2805250 has 48 divisors (see below), whose sum is σ = 6135480. Its totient is φ = 957600.

The previous prime is 2805247. The next prime is 2805251. The reversal of 2805250 is 525082.

It can be written as a sum of positive squares in 4 ways, for example, as 1535121 + 1270129 = 1239^2 + 1127^2 .

It is not an unprimeable number, because it can be changed into a prime (2805251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12136 + ... + 12364.

2^2805250 is an apocalyptic number.

2805250 is an abundant number, since it is smaller than the sum of its proper divisors (3330230).

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

2805250 is a wasteful number, since it uses less digits than its factorization.

2805250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2805250 is about 1674.8880559608. Note that the first 3 decimals coincide. The cubic root of 2805250 is about 141.0340108757.

The spelling of 2805250 in words is "two million, eight hundred five thousand, two hundred fifty".