7313740 has 72 divisors (see below), whose sum is σ = 18960480. Its totient is φ = 2354688.

The previous prime is 7313729. The next prime is 7313749. The reversal of 7313740 is 473137.

It is a happy number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (7313749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16441 + ... + 16879.

It is an arithmetic number, because the mean of its divisors is an integer number (263340).

Almost surely, 2^7313740 is an apocalyptic number.

7313740 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 7313740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9480240).

7313740 is an abundant number, since it is smaller than the sum of its proper divisors (11646740).

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

7313740 is a wasteful number, since it uses less digits than its factorization.

7313740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 7313740 is about 2704.3927229602. The cubic root of 7313740 is about 194.1093725564.

Adding to 7313740 its reverse (473137), we get a palindrome (7786877).

The spelling of 7313740 in words is "seven million, three hundred thirteen thousand, seven hundred forty".