7057220 has 24 divisors (see below), whose sum is σ = 14888664. Its totient is φ = 2809856.

The previous prime is 7057201. The next prime is 7057229. The reversal of 7057220 is 227507.

It can be written as a sum of positive squares in 4 ways, for example, as 4937284 + 2119936 = 2222^2 + 1456^2 .

It is not an unprimeable number, because it can be changed into a prime (7057229) 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, 4454 + ... + 5826.

It is an arithmetic number, because the mean of its divisors is an integer number (620361).

Almost surely, 2^7057220 is an apocalyptic number.

It is an amenable number.

7057220 is an abundant number, since it is smaller than the sum of its proper divisors (7831444).

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

7057220 is a wasteful number, since it uses less digits than its factorization.

7057220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639 (or 1637 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 7057220 is about 2656.5428662079. The cubic root of 7057220 is about 191.8129326705.

The spelling of 7057220 in words is "seven million, fifty-seven thousand, two hundred twenty".