3028240 has 20 divisors (see below), whose sum is σ = 7040844. Its totient is φ = 1211264.

The previous prime is 3028229. The next prime is 3028241. The reversal of 3028240 is 428203.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 364816 + 2663424 = 604^2 + 1632^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (3028241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18847 + ... + 19006.

Almost surely, 2^3028240 is an apocalyptic number.

It is an amenable number.

3028240 is an abundant number, since it is smaller than the sum of its proper divisors (4012604).

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

3028240 is a wasteful number, since it uses less digits than its factorization.

3028240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37866 (or 37860 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 3028240 is about 1740.1838983280. The cubic root of 3028240 is about 144.6760902873.

The spelling of 3028240 in words is "three million, twenty-eight thousand, two hundred forty".