7022520 has 48 divisors (see below), whose sum is σ = 22824360. Its totient is φ = 1872576.

The previous prime is 7022507. The next prime is 7022531. The reversal of 7022520 is 252207.

It is a happy number.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7022493 and 7022502.

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 11 ways as a sum of consecutive naturals, for example, 9394 + ... + 10113.

Almost surely, 2^7022520 is an apocalyptic number.

It is an amenable number.

7022520 is an abundant number, since it is smaller than the sum of its proper divisors (15801840).

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

7022520 is a wasteful number, since it uses less digits than its factorization.

7022520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19524 (or 19517 counting only the distinct ones).

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

The square root of 7022520 is about 2650.0037735822. The cubic root of 7022520 is about 191.4980377787.

Adding to 7022520 its reverse (252207), we get a palindrome (7274727).

The spelling of 7022520 in words is "seven million, twenty-two thousand, five hundred twenty".