7248640 has 72 divisors (see below), whose sum is σ = 19867680. Its totient is φ = 2482176.

The previous prime is 7248607. The next prime is 7248643. The reversal of 7248640 is 468427.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (7248643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8556 + ... + 9364.

It is an arithmetic number, because the mean of its divisors is an integer number (275940).

Almost surely, 2^7248640 is an apocalyptic number.

7248640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7248640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9933840).

7248640 is an abundant number, since it is smaller than the sum of its proper divisors (12619040).

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

7248640 is an equidigital number, since it uses as much as digits as its factorization.

7248640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 7248640 is about 2692.3298460627. The cubic root of 7248640 is about 193.5317292235.

The spelling of 7248640 in words is "seven million, two hundred forty-eight thousand, six hundred forty".