7288744320 has 384 divisors, whose sum is σ = 29572452000. Its totient is φ = 1630863360.

The previous prime is 7288744279. The next prime is 7288744363. The reversal of 7288744320 is 234478827.

7288744320 is a `hidden beast` number, since 7 + 288 + 7 + 44 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 819256 + ... + 828104.

Almost surely, 2^7288744320 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 7288744320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14786226000).

7288744320 is an abundant number, since it is smaller than the sum of its proper divisors (22283707680).

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

7288744320 is a wasteful number, since it uses less digits than its factorization.

7288744320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8898 (or 8883 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 45.

The square root of 7288744320 is about 85374.1431582186. The cubic root of 7288744320 is about 1938.8798862183.

The spelling of 7288744320 in words is "seven billion, two hundred eighty-eight million, seven hundred forty-four thousand, three hundred twenty".