7313940 has 72 divisors (see below), whose sum is σ = 22407840. Its totient is φ = 1930944.

The previous prime is 7313903. The next prime is 7313951. The reversal of 7313940 is 493137.

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, 32107 + ... + 32333.

It is an arithmetic number, because the mean of its divisors is an integer number (311220).

Almost surely, 2^7313940 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 7313940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11203920).

7313940 is an abundant number, since it is smaller than the sum of its proper divisors (15093900).

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

7313940 is a wasteful number, since it uses less digits than its factorization.

7313940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 7313940 is about 2704.4296995855. The cubic root of 7313940 is about 194.1111418984. Note that the first 4 decimals are identical.

The spelling of 7313940 in words is "seven million, three hundred thirteen thousand, nine hundred forty".