2780250 has 64 divisors (see below), whose sum is σ = 7592832. Its totient is φ = 672000.

The previous prime is 2780243. The next prime is 2780273. The reversal of 2780250 is 520872.

2780250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2780250.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8082 + ... + 8418.

It is an arithmetic number, because the mean of its divisors is an integer number (118638).

2^2780250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2780250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3796416).

2780250 is an abundant number, since it is smaller than the sum of its proper divisors (4812582).

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

2780250 is a wasteful number, since it uses less digits than its factorization.

2780250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 2780250 is about 1667.4081683859. The cubic root of 2780250 is about 140.6138015774.

The spelling of 2780250 in words is "two million, seven hundred eighty thousand, two hundred fifty".