7200240 has 80 divisors (see below), whose sum is σ = 23510400. Its totient is φ = 1817856.

The previous prime is 7200239. The next prime is 7200241. The reversal of 7200240 is 420027.

It is an interprime number because it is at equal distance from previous prime (7200239) and next prime (7200241).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7200241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3771 + ... + 5349.

It is an arithmetic number, because the mean of its divisors is an integer number (293880).

Almost surely, 2^7200240 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 7200240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11755200).

7200240 is an abundant number, since it is smaller than the sum of its proper divisors (16310160).

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

7200240 is a wasteful number, since it uses less digits than its factorization.

7200240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614 (or 1608 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 7200240 is about 2683.3262939866. The cubic root of 7200240 is about 193.1000224293.

Adding to 7200240 its reverse (420027), we get a palindrome (7620267).

It can be divided in two parts, 7200 and 240, that multiplied together give a cube (1728000 = 120³).

The spelling of 7200240 in words is "seven million, two hundred thousand, two hundred forty".