2250666 has 48 divisors (see below), whose sum is σ = 5529888. Its totient is φ = 680400.

The previous prime is 2250649. The next prime is 2250667. The reversal of 2250666 is 6660522.

2250666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (2250667) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 5136 + ... + 5556.

It is an arithmetic number, because the mean of its divisors is an integer number (115206).

2^2250666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2250666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2764944).

2250666 is an abundant number, since it is smaller than the sum of its proper divisors (3279222).

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

2250666 is a wasteful number, since it uses less digits than its factorization.

2250666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2250666 is about 1500.2219835744. The cubic root of 2250666 is about 131.0499974259.

It can be divided in two parts, 2250 and 666, that added together give a square (2916 = 54²).

The spelling of 2250666 in words is "two million, two hundred fifty thousand, six hundred sixty-six".