7028520 has 64 divisors (see below), whose sum is σ = 21669120. Its totient is φ = 1822464.

The previous prime is 7028519. The next prime is 7028533. The reversal of 7028520 is 258207.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3649 + ... + 5231.

It is an arithmetic number, because the mean of its divisors is an integer number (338580).

Almost surely, 2^7028520 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 7028520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10834560).

7028520 is an abundant number, since it is smaller than the sum of its proper divisors (14640600).

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

7028520 is a wasteful number, since it uses less digits than its factorization.

7028520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634 (or 1630 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 7028520 is about 2651.1356057358. The cubic root of 7028520 is about 191.5525605213.

The spelling of 7028520 in words is "seven million, twenty-eight thousand, five hundred twenty".