2204728 has 8 divisors (see below), whose sum is σ = 4133880. Its totient is φ = 1102360.

The previous prime is 2204701. The next prime is 2204731. The reversal of 2204728 is 8274022.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137788 + ... + 137803.

It is an arithmetic number, because the mean of its divisors is an integer number (516735).

2^2204728 is an apocalyptic number.

It is an amenable number.

2204728 is a deficient number, since it is larger than the sum of its proper divisors (1929152).

2204728 is a wasteful number, since it uses less digits than its factorization.

2204728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275597 (or 275593 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 2204728 is about 1484.8326505031. The cubic root of 2204728 is about 130.1522476632.

The spelling of 2204728 in words is "two million, two hundred four thousand, seven hundred twenty-eight".