2200945 has 8 divisors (see below), whose sum is σ = 2712744. Its totient is φ = 1713024.

The previous prime is 2200943. The next prime is 2200949. The reversal of 2200945 is 5490022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1361889 + 839056 = 1167^2 + 916^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2200945 - 2¹ = 2200943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2200943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5764 + ... + 6133.

It is an arithmetic number, because the mean of its divisors is an integer number (339093).

2^2200945 is an apocalyptic number.

It is an amenable number.

2200945 is a deficient number, since it is larger than the sum of its proper divisors (511799).

2200945 is a wasteful number, since it uses less digits than its factorization.

2200945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11939.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2200945 is about 1483.5582226526. The cubic root of 2200945 is about 130.0777641242.

Adding to 2200945 its reverse (5490022), we get a palindrome (7690967).

The spelling of 2200945 in words is "two million, two hundred thousand, nine hundred forty-five".