2868224 has 22 divisors (see below), whose sum is σ = 5735694. Its totient is φ = 1433600.

The previous prime is 2868211. The next prime is 2868251. The reversal of 2868224 is 4228682.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2458624 + 409600 = 1568^2 + 640^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a d-powerful number, because it can be written as 2¹² + 8³ + 6⁸ + 8⁴ + 2¹⁷ + 2²⁰ + 4⁴ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377 + ... + 2424.

2^2868224 is an apocalyptic number.

It is an amenable number.

2868224 is a deficient number, since it is larger than the sum of its proper divisors (2867470).

2868224 is an equidigital number, since it uses as much as digits as its factorization.

2868224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821 (or 2803 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 2868224 is about 1693.5831836671. The cubic root of 2868224 is about 142.0815507230.

The spelling of 2868224 in words is "two million, eight hundred sixty-eight thousand, two hundred twenty-four".