2628224 has 16 divisors (see below), whose sum is σ = 5236170. Its totient is φ = 1314048.

The previous prime is 2628191. The next prime is 2628229. The reversal of 2628224 is 4228262.

It can be written as a sum of positive squares in only one way, i.e., 2050624 + 577600 = 1432^2 + 760^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×2628224² = 13815122788352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2628193 and 2628202.

It is not an unprimeable number, because it can be changed into a prime (2628229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10139 + ... + 10394.

2^2628224 is an apocalyptic number.

It is an amenable number.

2628224 is a deficient number, since it is larger than the sum of its proper divisors (2607946).

2628224 is an equidigital number, since it uses as much as digits as its factorization.

2628224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20547 (or 20535 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 2628224 is about 1621.1798172936. The cubic root of 2628224 is about 138.0026604542.

The spelling of 2628224 in words is "two million, six hundred twenty-eight thousand, two hundred twenty-four".