7241520 has 160 divisors (see below), whose sum is σ = 26498304. Its totient is φ = 1612800.

The previous prime is 7241519. The next prime is 7241537. The reversal of 7241520 is 251427.

It is a super-2 number, since 2×7241520² = 104879223820800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34215 + ... + 34425.

Almost surely, 2^7241520 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 7241520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13249152).

7241520 is an abundant number, since it is smaller than the sum of its proper divisors (19256784).

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

7241520 is a wasteful number, since it uses less digits than its factorization.

7241520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 7241520 is about 2691.0072463671. The cubic root of 7241520 is about 193.4683427435.

Adding to 7241520 its reverse (251427), we get a palindrome (7492947).

The spelling of 7241520 in words is "seven million, two hundred forty-one thousand, five hundred twenty".