2204646 has 32 divisors (see below), whose sum is σ = 4717440. Its totient is φ = 684864.

The previous prime is 2204623. The next prime is 2204647. The reversal of 2204646 is 6464022.

2204646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9346 + ... + 9578.

It is an arithmetic number, because the mean of its divisors is an integer number (147420).

2^2204646 is an apocalyptic number.

2204646 is an abundant number, since it is smaller than the sum of its proper divisors (2512794).

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

2204646 is a wasteful number, since it uses less digits than its factorization.

2204646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2204646 is about 1484.8050377070. The cubic root of 2204646 is about 130.1506340678.

Adding to 2204646 its reverse (6464022), we get a palindrome (8668668).

It can be divided in two parts, 2204 and 646, that added together give a triangular number (2850 = T₇₅).

The spelling of 2204646 in words is "two million, two hundred four thousand, six hundred forty-six".