2250780 has 96 divisors (see below), whose sum is σ = 7547904. Its totient is φ = 489984.

The previous prime is 2250779. The next prime is 2250793. The reversal of 2250780 is 870522.

It is a self number, because there is not a number n which added to its sum of digits gives 2250780.

It is a congruent number.

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, 9544 + ... + 9776.

It is an arithmetic number, because the mean of its divisors is an integer number (78624).

2^2250780 is an apocalyptic number.

2250780 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 2250780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3773952).

2250780 is an abundant number, since it is smaller than the sum of its proper divisors (5297124).

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

2250780 is a wasteful number, since it uses less digits than its factorization.

2250780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 273 counting only the distinct ones).

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

The square root of 2250780 is about 1500.2599774706. The cubic root of 2250780 is about 131.0522100224.

The spelling of 2250780 in words is "two million, two hundred fifty thousand, seven hundred eighty".