2205450 has 108 divisors (see below), whose sum is σ = 6637410. Its totient is φ = 524160.

The previous prime is 2205449. The next prime is 2205451. The reversal of 2205450 is 545022.

It is an interprime number because it is at equal distance from previous prime (2205449) and next prime (2205451).

It can be written as a sum of positive squares in 9 ways, for example, as 35721 + 2169729 = 189^2 + 1473^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2205451) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 76036 + ... + 76064.

2^2205450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2205450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3318705).

2205450 is an abundant number, since it is smaller than the sum of its proper divisors (4431960).

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

2205450 is a wasteful number, since it uses less digits than its factorization.

2205450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 2205450 is about 1485.0757556435. The cubic root of 2205450 is about 130.1664534469.

The spelling of 2205450 in words is "two million, two hundred five thousand, four hundred fifty".