7052220 has 144 divisors (see below), whose sum is σ = 25421760. Its totient is φ = 1548288.

The previous prime is 7052207. The next prime is 7052231. The reversal of 7052220 is 222507.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 7052193 and 7052202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36444 + ... + 36636.

It is an arithmetic number, because the mean of its divisors is an integer number (176540).

Almost surely, 2^7052220 is an apocalyptic number.

7052220 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7052220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12710880).

7052220 is an abundant number, since it is smaller than the sum of its proper divisors (18369540).

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

7052220 is a wasteful number, since it uses less digits than its factorization.

7052220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 7052220 is about 2655.6016267505. The cubic root of 7052220 is about 191.7676225130.

Adding to 7052220 its reverse (222507), we get a palindrome (7274727).

The spelling of 7052220 in words is "seven million, fifty-two thousand, two hundred twenty".