2203445 has 8 divisors (see below), whose sum is σ = 2658744. Its totient is φ = 1753024.

The previous prime is 2203441. The next prime is 2203447. The reversal of 2203445 is 5443022.

It can be written as a sum of positive squares in 4 ways, for example, as 1136356 + 1067089 = 1066^2 + 1033^2 .

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 2203445 - 2² = 2203441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203441) 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, 134 + ... + 2103.

It is an arithmetic number, because the mean of its divisors is an integer number (332343).

2^2203445 is an apocalyptic number.

It is an amenable number.

2203445 is a deficient number, since it is larger than the sum of its proper divisors (455299).

2203445 is a wasteful number, since it uses less digits than its factorization.

2203445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 2203445 is about 1484.4005524116. The cubic root of 2203445 is about 130.1269962134.

Adding to 2203445 its reverse (5443022), we get a palindrome (7646467).

The spelling of 2203445 in words is "two million, two hundred three thousand, four hundred forty-five".