7013520 has 160 divisors (see below), whose sum is σ = 25712640. Its totient is φ = 1751040.

The previous prime is 7013491. The next prime is 7013521. The reversal of 7013520 is 253107.

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 = 7013493 and 7013502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7013521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36625 + ... + 36815.

It is an arithmetic number, because the mean of its divisors is an integer number (160704).

Almost surely, 2^7013520 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 7013520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12856320).

7013520 is an abundant number, since it is smaller than the sum of its proper divisors (18699120).

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

7013520 is a wasteful number, since it uses less digits than its factorization.

7013520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 7013520 is about 2648.3051183729. The cubic root of 7013520 is about 191.4161954044.

Adding to 7013520 its reverse (253107), we get a palindrome (7266627).

The spelling of 7013520 in words is "seven million, thirteen thousand, five hundred twenty".