7027220 has 12 divisors (see below), whose sum is σ = 14757204. Its totient is φ = 2810880.

The previous prime is 7027219. The next prime is 7027243. The reversal of 7027220 is 227207.

7027220 = 180² + 181² + ... + 299².

It can be written as a sum of positive squares in 2 ways, for example, as 4048144 + 2979076 = 2012^2 + 1726^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 351361 = 7027220 / (7 + 0 + 2 + 7 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 7027192 and 7027201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175661 + ... + 175700.

It is an arithmetic number, because the mean of its divisors is an integer number (1229767).

Almost surely, 2^7027220 is an apocalyptic number.

It is an amenable number.

7027220 is an abundant number, since it is smaller than the sum of its proper divisors (7729984).

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

7027220 is a wasteful number, since it uses less digits than its factorization.

7027220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351370 (or 351368 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 7027220 is about 2650.8904164450. The cubic root of 7027220 is about 191.5407498944.

The spelling of 7027220 in words is "seven million, twenty-seven thousand, two hundred twenty".