2204638 has 8 divisors (see below), whose sum is σ = 3421080. Its totient is φ = 1064280.

The previous prime is 2204623. The next prime is 2204647. The reversal of 2204638 is 8364022.

It is a happy number.

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

It is a super-2 number, since 2×2204638² = 9720857422088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18948 + ... + 19063.

It is an arithmetic number, because the mean of its divisors is an integer number (427635).

2^2204638 is an apocalyptic number.

2204638 is a deficient number, since it is larger than the sum of its proper divisors (1216442).

2204638 is a wasteful number, since it uses less digits than its factorization.

2204638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38042.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 2204638 is about 1484.8023437482. The cubic root of 2204638 is about 130.1504766418.

The spelling of 2204638 in words is "two million, two hundred four thousand, six hundred thirty-eight".