7313898240 has 720 divisors, whose sum is σ = 29328669216. Its totient is φ = 1739612160.

The previous prime is 7313898233. The next prime is 7313898259. The reversal of 7313898240 is 428983137.

7313898240 is a `hidden beast` number, since 7 + 313 + 8 + 98 + 240 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 137998054 + ... + 137998106.

Almost surely, 2^7313898240 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 7313898240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14664334608).

7313898240 is an abundant number, since it is smaller than the sum of its proper divisors (22014770976).

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

7313898240 is an equidigital number, since it uses as much as digits as its factorization.

7313898240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 7313898240 is about 85521.3320756874. The cubic root of 7313898240 is about 1941.1077246242.

The spelling of 7313898240 in words is "seven billion, three hundred thirteen million, eight hundred ninety-eight thousand, two hundred forty".