7028220 has 48 divisors (see below), whose sum is σ = 20166048. Its totient is φ = 1827840.

The previous prime is 7028213. The next prime is 7028243. The reversal of 7028220 is 228207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1032 + ... + 3888.

It is an arithmetic number, because the mean of its divisors is an integer number (420126).

Almost surely, 2^7028220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7028220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10083024).

7028220 is an abundant number, since it is smaller than the sum of its proper divisors (13137828).

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

7028220 is a wasteful number, since it uses less digits than its factorization.

7028220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910 (or 2908 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 7028220 is about 2651.0790256045. The cubic root of 7028220 is about 191.5498351213.

The spelling of 7028220 in words is "seven million, twenty-eight thousand, two hundred twenty".