2620228 has 24 divisors (see below), whose sum is σ = 5062680. Its totient is φ = 1178880.

The previous prime is 2620223. The next prime is 2620231. The reversal of 2620228 is 8220262.

It can be written as a sum of positive squares in 4 ways, for example, as 161604 + 2458624 = 402^2 + 1568^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2620199 and 2620208.

It is not an unprimeable number, because it can be changed into a prime (2620223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1518 + ... + 2746.

It is an arithmetic number, because the mean of its divisors is an integer number (210945).

2^2620228 is an apocalyptic number.

It is an amenable number.

2620228 is a deficient number, since it is larger than the sum of its proper divisors (2442452).

2620228 is a wasteful number, since it uses less digits than its factorization.

2620228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287 (or 1285 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2620228 is about 1618.7118335269. The cubic root of 2620228 is about 137.8625670910.

The spelling of 2620228 in words is "two million, six hundred twenty thousand, two hundred twenty-eight".