2274728 has 8 divisors (see below), whose sum is σ = 4265130. Its totient is φ = 1137360.

The previous prime is 2274709. The next prime is 2274733. The reversal of 2274728 is 8274722.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2079364 + 195364 = 1442^2 + 442^2 .

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 = 2274694 and 2274703.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142163 + ... + 142178.

2^2274728 is an apocalyptic number.

It is an amenable number.

2274728 is a deficient number, since it is larger than the sum of its proper divisors (1990402).

2274728 is a wasteful number, since it uses less digits than its factorization.

2274728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284347 (or 284343 counting only the distinct ones).

The product of its digits is 12544, while the sum is 32.

The square root of 2274728 is about 1508.2201430826. The cubic root of 2274728 is about 131.5153639516.

The spelling of 2274728 in words is "two million, two hundred seventy-four thousand, seven hundred twenty-eight".