2203564 has 24 divisors (see below), whose sum is σ = 4280976. Its totient is φ = 984000.

The previous prime is 2203559. The next prime is 2203571. The reversal of 2203564 is 4653022.

It is a happy number.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁶ + 2¹⁶ + 0 + 3⁷ + 5⁸ + 6⁸ + 4³ .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2274 + ... + 3094.

It is an arithmetic number, because the mean of its divisors is an integer number (178374).

2^2203564 is an apocalyptic number.

It is an amenable number.

2203564 is a deficient number, since it is larger than the sum of its proper divisors (2077412).

2203564 is a wasteful number, since it uses less digits than its factorization.

2203564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 895 counting only the distinct ones).

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

The square root of 2203564 is about 1484.4406353910. The cubic root of 2203564 is about 130.1293387321.

Adding to 2203564 its reverse (4653022), we get a palindrome (6856586).

The spelling of 2203564 in words is "two million, two hundred three thousand, five hundred sixty-four".