7380728544 has 96 divisors (see below), whose sum is σ = 22160355840. Its totient is φ = 2107049472.

The previous prime is 7380728539. The next prime is 7380728557. The reversal of 7380728544 is 4458270837.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 7380728493 and 7380728502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 972637 + ... + 980195.

It is an arithmetic number, because the mean of its divisors is an integer number (230837040).

Almost surely, 2^7380728544 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 7380728544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11080177920).

7380728544 is an abundant number, since it is smaller than the sum of its proper divisors (14779627296).

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

7380728544 is a wasteful number, since it uses less digits than its factorization.

7380728544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9032 (or 9024 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 48.

The square root of 7380728544 is about 85911.1665850255. The cubic root of 7380728544 is about 1947.0020594527.

The spelling of 7380728544 in words is "seven billion, three hundred eighty million, seven hundred twenty-eight thousand, five hundred forty-four".