7344720 has 90 divisors (see below), whose sum is σ = 24912654. Its totient is φ = 1939200.

The previous prime is 7344713. The next prime is 7344721. The reversal of 7344720 is 274437.

It can be written as a sum of positive squares in 3 ways, for example, as 4562496 + 2782224 = 2136^2 + 1668^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7344721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 72670 + ... + 72770.

Almost surely, 2^7344720 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 7344720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12456327).

7344720 is an abundant number, since it is smaller than the sum of its proper divisors (17567934).

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

7344720 is a wasteful number, since it uses less digits than its factorization.

7344720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 7344720 is about 2710.1143887297. The cubic root of 7344720 is about 194.3830600491.

The spelling of 7344720 in words is "seven million, three hundred forty-four thousand, seven hundred twenty".