2298728 has 8 divisors (see below), whose sum is σ = 4310130. Its totient is φ = 1149360.

The previous prime is 2298719. The next prime is 2298731. The reversal of 2298728 is 8278922.

It can be written as a sum of positive squares in only one way, i.e., 2184484 + 114244 = 1478^2 + 338^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2298691 and 2298700.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143663 + ... + 143678.

2^2298728 is an apocalyptic number.

It is an amenable number.

2298728 is a deficient number, since it is larger than the sum of its proper divisors (2011402).

2298728 is a wasteful number, since it uses less digits than its factorization.

2298728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287347 (or 287343 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 2298728 is about 1516.1556648313. The cubic root of 2298728 is about 131.9762736664.

The spelling of 2298728 in words is "two million, two hundred ninety-eight thousand, seven hundred twenty-eight".