2203456 has 14 divisors (see below), whose sum is σ = 4372610. Its totient is φ = 1101696.

The previous prime is 2203447. The next prime is 2203457. The reversal of 2203456 is 6543022.

2203456 = T₄₅ + T₄₆ + ... + T₂₃₆.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1537600 + 665856 = 1240^2 + 816^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17151 + ... + 17278.

2^2203456 is an apocalyptic number.

It is an amenable number.

2203456 is a deficient number, since it is larger than the sum of its proper divisors (2169154).

2203456 is an equidigital number, since it uses as much as digits as its factorization.

2203456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34441 (or 34431 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2203456 is about 1484.4042576064. The cubic root of 2203456 is about 130.1272127522.

Adding to 2203456 its reverse (6543022), we get a palindrome (8746478).

The spelling of 2203456 in words is "two million, two hundred three thousand, four hundred fifty-six".