7240500 has 72 divisors (see below), whose sum is σ = 22855560. Its totient is φ = 1929600.

The previous prime is 7240481. The next prime is 7240523. The reversal of 7240500 is 50427.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 79524 + 7160976 = 282^2 + 2676^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3696 + ... + 5304.

Almost surely, 2^7240500 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 7240500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11427780).

7240500 is an abundant number, since it is smaller than the sum of its proper divisors (15615060).

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

7240500 is a wasteful number, since it uses less digits than its factorization.

7240500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634 (or 1619 counting only the distinct ones).

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

The square root of 7240500 is about 2690.8177195789. The cubic root of 7240500 is about 193.4592586941.

Adding to 7240500 its reverse (50427), we get a palindrome (7290927).

The spelling of 7240500 in words is "seven million, two hundred forty thousand, five hundred".